AWA 600T, 601T Diagram

Page 1

600-T & 601-T

TECHNICAL INFORMATION AND SERVICE DATA

RADIOLA

Models 600-T & 601-T

MODEL 600-T-SIX VALVE, TWO BAND, A.C. OPERATED SUPERHETERODINE MODEL 601-T-FIVE VALVE, TWO BAND, VIBRATOR OPERATED SUPERHETERODYNE

ISSUED BY

AMALGAMATED WIRELESS (A/SIA.) LTD.

FLECTRICAL SPECIFICATIONS.

FREQUENCY RANGES ....... Medium Wave, 1600-550 Kc.

(187.5-545 M.) Short Wave, 6-18 Mc. (50-16 M.)

INTERMEDIATE FREQUENCY 455 Kc.

DIAL LAMP (2) ...... 6.3 volt, 0.25 Amp. M.E.S.

MODEL 600-T.

VALVE COMPLEMENT:

I-6U7G R.F. Amplifier. I-6J8G Converter. I-6117G LE Amplifier 1-6B8G Detector, A.V.C., and A.F. Amplifier, 1-6V6GT/G Power Output. I-5Y3GT/G Rectifier.

CONTROLS:

POWER SUPPLY RATING .... 200-260 volts, 50-60 C.P.S. (Models are produced with other voltage and frequency ratings.)

POWER CONSUMPTION .... 60 watts.

LOUDSPEAKER. 7 inch—Code No. AW19. V.C. Impedance—3 ohms at Transformer-XAL

400 C.P.S. Field-1100 ohms

4.5 watts

UNDISTORTED OUTPUT ...

мС	DEL 601-T.
	LVE COMP	EMENT:
	1—1M5G	R.F. Amplifier.
	1—1C7G	Converter.
	1—1M5G	I.F. Amplifier.
	I—I K7G	Detector, A.V.C., and A.F. Amplifier.
	1—1L5G	Power Output.
SAT	TERY		0

TONE

BATTERY CONSUMPTION	I.4 Amps.
VIBRATOR	AWA-OAK Type V5211
FUSE
LOUDSPEAKER: 7 inch—Code No. AY21. Transformer—XA3.	V.C. Impedance—3 ohms at 400 C.P.S.
UNDISTORTED POWER OUT	PUT 250 milliwatts

OFF CONTROLS

VOLUME

BATTERY-TONE VOLUME SWITCH

TREBLE

TUNING

Page 2

600-Т & 601-Т

CIRCUIT CODE-Model 601-T

Circuit Code N	Stock Code No. Description. or Part No.	Circuit Code I	No. Description.	Stock Code or Part No.	Circuit Stock Code Code No. Description. or Part No.
L1, L2	INDUCTORS. Aerial coil, 1600-550	C24	3,200 uuF mica + 2½% (padder)	13213†	C57 5000 uuF mica 224, 295
	Kc. 16800	C25	0.05 uF paper, 400v.	220 115	RESISTORS.
L3, L4	Aerial coil, 6-18 Mc. / 16800	C24		228, 115	R2 I megohm. + watt 600, 341
L5, L6	R.F. coll, 1600-550 Kc. 16804	020	lytic	EE10774	R3 50,000 ohms, ½ watt 600, 315
L9, L10	Oscillator coil, 1600-550 Kc. 16802	C27	8 uF, 525 P.V. electro- lytic	EE10774	R4 40,000 ohms, I watt 600, 513 or 600, 713
LH, LI	2 Oscillator coil, 6-18 Mc. 16802	C28	70 uuF silvered mica	226, 460	R5 32,000 ohms, I watt
LI3, LI	4 Ist I.F. transformer	C29	70 uuF silvered mica	226, 460	600, 511 or 600, 711 R6 500 ohme L watt
	8286-Z, 8282*	C30	4 uuF mica	224, 233	600, 475 or 600, 675
L15, L1	6 2nd I.F. fransformer 8287-Z, 8281*	C31	0.01 uF paper, 600v. working	228, 301	R7 500 ohms, I watt 600, 475 or 600, 675
LI7	Low tension A.F. choke ITU14805	C32	0.1 uF paper, 400v. working	228. 121	R8 12,000 ohms, I watt 600, 503 or 600, 703
L19	R.F. choke 13809	C33	0.05 uF paper, 400v.		R9 12,000 ohms, 1 watt
L20	High tension R.F. choke 3036		working	228, 115	600, 503 or 600, 703
L21	High tension R.F. choke IXA8430	C34	0.05 uF paper, 400v.		R10 0.1 megohm, ½ watt 600, 321
L22	Low tension R.F. choke 3149	COL		228, 115	600, 517 or 600, 717
	CAPACITORS	C35	70 uuF silvered mica	226, 460	R12 1.6 megohms, ½ watt 600, 345
CL	2-20 uuE air trimmer 3661	C30	70 uur silvered mica	226, 460	R13 50,000 ohms, ½ watt 600, 315
C2	2-10 uuF air trimmer 3658			224, 201	R14 0.5 megohm, volume control 5622
C3	12-430 uuE variable tun-	C30	working	228, 301	RI5 I megohm, I watt
CJ	ing (ganged) 16816	C39	0.1 uF paper, 400v.	•	600, 541 or 600, 741
C4	200 uuF mica 224, 267		working	228, 121	RIG 1.6 megohms, ½ watt 600, 345
C5	400 uF, 12 P.V. electro	C40	50 uuF mica	224, 255	R17 2.5 megonims, ż watt 600, 349 R18 0.2 megonims I watt
	lytic EG10853	C41	0.1 uF paper, 400v.	220 121	600, 527 or 600, 727
C6	0.1 uF paper, 400v. working 228 121	CAR		228, 121	R19 50,000 ohms, 1 watt
C7	400 uF. 12 P.V. elec-			224, 20/	600, 515 or 600, 715
	trolytic EG10853		working	228, 135	R21 04 megohms 1 watt 600, 315
C8	400 uF, 12 P.V. electro-	C44	0.01 uF paper, 600v.		R22 0.1 megohm. + watt 600, 333
	lyfic EG10853		working	228, 301	R23 0.2 megohms, 1 watt 600, 327
Cy Clo		C45	0.0025 uF paper, 600v. working	220 200	R24 15,000 ohms, 1 watt
	4 uur mica 224, 233	C46	0.05 uE paper 400v	220, 207	R25 100 ohms, 3 watt, wire
CIA	2.10 uur air frimmer 3058		working	228, 115	wound 602, 361
	12.420 uuE variable tur	C47	2,000 uuF mica	13213†	K26 100 ohms, 3 watt, wire wound 602 361
CIJ	ing (ganged) 16816	C48	0.01 uF mica	224, 801	R27 400 ohms. 1 watt 600 273
C14	200 uuF mica 224, 267	C49	8 uF, 525 P.V. electro-		R28 160 ohms, 1 watt, wire
C15	0.1 uF paper, 400v. working 228, 121	C50	lytic 400 uF, 12 P.V. electro-	EG10810	wound
C16	70 uuF mica 13211†			EG10853	TRANSFORMERS.
CI7	Neutraliser (on tuning		working	228, 301	TI Vibrator Transformer 2TS6817
C18	2-20 uuF air trimmer 3661	C52	0.5 uF paper, 400v.
C19	12-430 uuF variable tun-	CER		228, 135	SWITCHES.
	ing (ganged) 16816	03	0.02 ur paper, 600v. working	228, 307	SI Range, 3 wafer, 2 posi-
C20	14 uuF mica 13211†	C54	0.02 uF paper, 600v.		tion, rotary 16328
·C21	470 uuF mica ± 2½%		working	228, 307	Wafer \| \|6328/\|
C22	(padder) 132121 0.05 uF paper 400v	C55	0.02 uF paper, 600v.	220 207	Wafer 2 16328/2
~~~ C	working 228, 115	C54	8 uE 525 DV alast-	228, 30/
C23	2-10 uuF air trimmer 3658	0.00	, lytic	EE0849	(INOTE: Waters numbered trom front of chassis.)

* Part number of winding only.

t Capacitance and tolerance (if shown) to be quoted.

Page 3

MODEL 600-T. VALVE LAYOUT.

MODEL 601-T. VALVE LAYOUT.

MECHANICAL SPECIFICATIONS.

		Height.	Width.	Depth.	Weight	(nett Ibs	.)—
Cabinet Dimension	s (inches)	11	23 3	111	600	-T	•••••		·	32 .
Chassis Base Dime	nsions (inches	) 3½	15	81/2	601	-T		••••••••••••	••••••	36
Overall Chassis He	ight (inches)			8	Cabinet	Finish			Walnut	Veneer

ALIGNMENT PROCEDURE.

Manufacturer's Setting of Adjustments

The receiver is tested by the manufacturers with precision instruments and all adjusting screws are sealed. Re-alignment should be necessary only when components in tuned circuits are repaired or replaced, or when it is found that the seals over the adjusting screws have been broken.

It is especially important that the adjustments should not be altered unless in association with the correct testing instruments listed below.

Under no circumstances should the plates of the ganged tuning capacitor be bent, as the unit is accurately aligned during manufacture and cannot be re-adjusted unless by skilled operators using specialised equipment.

For all alignment operations, connect the "low" side of the signal generator to the receiver chassis, and keep the generator output as low as possible to avoid A.V.C. action. Also, keep the volume control in the maximum clockwise position.

As the dial is not mounted on the chassis, it is necessary to mark the calibration points shown in the table on a strip of cardboard to make, a substitute scale which may be fastened to the dial drive struts on the front of the chassis. The position of the pointer with the gang fully closed should also be indicated and this will be found as a mark

on the scale approximately 1/16 inch to the left of 2CR and on the line below. A temporary pointer may be made by fastening a piece of copper wire to the drive cord.

Testing Instruments.

(I) A.W.A. Junior Signal Generator, type 2R3911

(2) A.W.A. Modulated Oscillator, type J6726.

If the modulated oscillator is used, connect a 0.25 megohm non-inductive resistor across the output terminals, and, for short-wave alignment, an additional 400 ohms non-inductive resistor in series with the "high" output lead of the instrument.

(3) Output Meter.

The instrument recommended should have a range of 5-3,000 milliwatts and an output impedance of 5,000 ohms for the 600-T and 12,000 ohms for the 601-T. The meter should be connected across the primary of the loudspeaker transformer with the voice coil of the loudspeaker open-circuit.

If the output meter used is one which does not impress a load on the anode circuit of the output valve it will not be necessary to open-circuit the voice coil.

Page 4

Order.	Connect "high" side of Generator to:	Tune Generator to:	Tune Receiver to:	Adjust for maximum peak output.
	Converter Grid*	455 Kc.	550 Kc. (2CR)†	LI6 core
2	Converter Grid*	455 Kc.	550 Kc.	LI5 core
3	Converter Grid*	455 Kc.	550 Kc.	LI4 core
4	Converter Grid*	455 Kc.	550 Kc.	LI3 core
	Re	epeat the above adjustments	until maximum output is ol	otained.
5	Aerial Terminal	600 Kc.	600 Kc. (7ZL)	L.F. Osc. Core Adj., L10§
6	Aerial Terminal	1500 Kc.	1500 Kc. (3AK)	H.F. Osc. Adj., C18
7	Aerial Terminal	1500 Kc.	1500 Kc.	R.F. Adj., C7 (600-T), C12 (601-T)
8	Aerial Terminal	1500 Kc.	1500 Kc.	Aer. Adj., C2
-		Repeat Adjustm	ents 5, 6, 7 and 8.
9	I Aerial Terminal	17 Mc.	17 Mc.	10sc. Adj., C15 (600-T), C23 (601-T)
	Aerial Terminal	17 Mc.	17 Mc.	R.F. Adj., C6 (600-T), CII (601-T)‡
	Aerial Terminal	17 Mc.	17 Mc.	Aer. Adj., Cl

ALIGNMENT TABLE.

* With grid clip connected. A 0.001 uF capacitor should be connected in series with the "high" side of the test instrument.

§ Rock the Tuning Control back and forth through the signal.

¶Use minimum capacity peak if two can be obtained.

‡ Use maximum capacity peak if two can be obtained.

Loudspeaker Service.

It is inadvisable to attempt loudspeaker repairs other than adjustment of the voice coil and replacement of the transformer. The fitting of a new cone or the replacement of a field winding should be done only by the Service Departments suitably equipped to do the work.

To centre the voice coil, first remove the dust cover. To do this, use a very sharp razor blade and cut the centre out of the dust cover, cutting just inside the edges of the voice coil former, which can be felt with the finger. Do not attempt to tear the cover from the cone. Loosen the suspension screws, insert three narrow paper "feelers" in the gap and re-tighten the suspension screws. The "feelers" should be approximately 3/16 inch wide and 0.006 incn thick.

Connection to Power Supply (600-T).

The receiver should not be connected to any circuit supplying other than alternating current from 200 to 250 volts and at the frequency stated on the label within the cabinet. The power supply connection panel is shown in the accompanying diagram, and for 230 to 260 volt operation the input leads from the power switch (S2) should be connected to tags B and G. For operation on voltages below 230 connection should be made to tags B and W.

Phonograph Pick-up Attachment.

Three sockets are provided at the rear of the receiver. The lower two sockets are bridged with a link for radio reception. For phonograph operation remove the link and connect the pick-up to the upper two terminals, which are marked "P."

Most modern pick-ups have the connecting leads entirely shielded with metal braiding, which should be "earthed" to the receiver chassis.

The connections for a permanent pick-up installation employing a S.P.D.T. switch is shown in the accompanying diagram. It should be noted that the leads connecting the switch to the sockets are shielded and the shielding earthed.

Page 5

SOCKET VOLTAGES (600-T)

	Valves.	Cathode t Chassis Volts.	۰ ,	Sc reen Grid to Chassis Volts.	n de la composition de la comp		Plate to Chassis Volts.	Plate Current mA.		Heater Volts.
6U7G	R.F. Amplifier, M.W.			90			268	7.5		6.3
	S.W			90			268	7.5	-	6.3
6J8G	Converter, M.W.	2.1		90			268	0.5		6.3
	S.W.	2.6		90			268	1.0		6.3
	Oscillator, M.W.			·			145	5.4
	s.w.	. —					145	5.4
6U7G	I.F. Amplifier			90			268	7.5		6.3
6B8G	Detector, A.V.C. and A.F. Amp			32			102	0.5		6.3
6V6G	Output	13		268	•		245	47		6.3
5Y3G	Rectifier	700/350 Vol	ts, T	otal Current	1 8	0 m	nA.	-		5.0

Voltages and currents measured at 240 volts A.C. supply. No signal input. Volume Control maximum clockwise. Voltmeter, 1000 ohms per volt; measurements taken on highest scale giving accurate readable deflection.

Valves.	Screen Grid to Chassis Volts.	Plate to Chassis Volts.	Pla Curre	te nt.	Fil. Volts.
IM5G R.F. Amplifier, M.W.	70	180	2.6	)	2.0
S.W	70	180	2.6		2.0
IC7G Converter, M.W.	50	170	0.5	5	2.0
S.W	55	160	1.4	5	·
Oscillator, M.W.		65	1.1	l di setta d	2.0
S.W		110	3.4	Fill a seguri
1M5G I.F. Amplifier	70	180	2.6	n i s	2.0
IK7G Detector, A.V.C. and A.F. Amp	35	70	0.3	5	2.0
IL5G Output	180	178	9.5		2.0
	Total H.T. Current 2	3 mA.

SOCKET VOLTAGES (601-T)

Voltages and currents measured with 6.2 volts L.T. No signal input. Volume Control maximum clockwise. Voltmeter 1000 ohms per volt; measurements taken on highest scale giving accurate readable deflection.

MECHANICAL REPLACEMENT PARTS.

ltem.	Part No.	ltem.	Part N
Cabinet	C61	Dial Scale	1767
Cable, battery—	•	Drum, drive	9090
Model 601-T	17677	Dust cover, loudspeaker	9843
Cable, loudspeaker—		Knob	4589
Model 600-T	17678	Pulley, brass	10200
Model 601-T	17711	Screen, I.F. Transformer	3351
Cable, pick-up		. Сар	8372
Model 600-T	17685	Screen. Valve	8147
Model 601-T	177.12	Сар	8148
Cable, power—		Register	4733
Model 600-T	209	Socket. Valve	4704
Cable, tone control—			17474
Model 600-T	17686	Spinale, funing arive	1/0/4
Model 601-T	17710	Spring, drive tension	6641
Cable, vibrator	17684	Strip, tag—
Clin arid	7450	• 3-way	9877
Chp, grid	7 + 5 7	4-way (601-T only)	8239
Cone assembly, loudspeaker	9356	5-way	7628
Dial Frame Assembly	17670	7-way	9879

Page 6

Chassis Removal and Replacement.

(1) Remove the control knobs.
(2) Disconnect the pointer from the dial drive cord by unscrewing the thumb nut and disconnect the loudspeaker cable. Also disconnect the dial lamp connection leads from the chassis.
(3) The chassis is held in the cabinet by four bolts. Remove these and withdraw the chassis from the cabinet.

On replacing the chassis in the cabinet, care must be taken to connect the dial pointer to the dial drive cord correctly, as follows:---

(1) Turn the Tuning Control to close the plates of the ganged capacitor.
(2) Bring the dial pointer to a position opposite a blue mark on the dial scale, approximately 1/16 inch to the left of 2CR and on the line below.
(3) Connect the pointer to the drive cord and tighten the thumb nut.

Tuning Drive Cord Replacement.

The accompanying diagram shows the route of the cord and the method of attachment. Whilst fitting the cord, keep it taut and adjust the length so that the tension spring measures approximately 2 inches long when fitted. The spring should be sheathed to prevent it from rattling against the drum.

Winding.	D.C.	Resistance	in ohms.
Aerial Coil (M.W.)— Primary (LI) Secondary (L2)		10 3	1 (a. *21
Aerial Coil (S.W.)— Primary (L3) Secondary (L4)	-	2*
R.F. Coil (M.W.)— Primary (L5) Secondary (L6)		60 3
R.F. Coil (S.W.)— Primary (L7) Secondary (L8)		5*	4 a. 1774. 1777. 1777.
Oscillator Coil (M.W.)— Primary (L9) Secondary (L10)		2 7
Oscillator Coil (S.W.)— Primary (LII) Secondary (LI2)		*
I.F. Transformer Windings		7.5
Power Transformer (600-T)— Primary Secondary		15 500
Loudspeaker Input Transformer (T2)—
XAI Primary		500	د ماهي در در
XAT Secondary XA3 Primary XA3 Secondary		650 *	2 - 0
R.F. Filter Choke (L17, L22)	· ·	*
Smoothing Choke (L18)		*
R.F. Filter Choke (L19)	1.50	9
R.F. Filter Choke (L20)		200
Smoothing Choke (L21)		150
Vibrator Transformer—		*
Secondary		255

D.C. RESISTANCE OF WINDINGS.

* Less than I ohm.

Page 7

600-Т & 601-Т

CIRCUIT CODE-Model 600-T

Circuit Stock Cod Code No. Description or Part No	e Circuit . Code N	o. Description	Stock Code or Part No.	Circuit Stock Code Code No. Description or Part No.
INDUCTORS.	C20	70 uuF silvered mica	226, 460	R5 6,000 ohms, 2 watt (2 x
LI, L2 Aerial coil, 1600-550 Kc. 16800	C21	70 uuF silvered mica	226, 460	12,000 ohms, 1 watt in parallel) 600, 503 or 600, 703
L3, L4 Aerial coil, 6-18 Mc. 16800	C22	4 uuF mica	224, 233	R6 8,000 ohms, 2 watt (2 x
L5, L6 R.F. coil, 1600-550 Kc. 16804	C23	0.01 uF paper, 600v. working	2 28, 301	16,000 ohms, 1 watt in parallel) 600, 505 or 600 705
L7, L8 R.F. coil, 6-18 Mc. 16804	C24	0.1 uF paper, 400v.		R7
L9, L10 Oscillator coil, 1600- 550.Kc. 16873	C25	working 0.05 uF paper, 400v.	228, 121	R8 20,000 ohms, 2 watt (2 x 40,000 ohms, 1 watt in parallel)
LII, LI2 Oscillator coil, 6-18 Mc. 16873		working	228, 115	600, 507 or 600, 707
LI3, LI4 Ist I.F. transformer	C26	70 uuF silvered mica	226, 4 60	R9 1.6 megohms, ½ watt 600, 345
9730-2, 8281	C27	70 uuF silvered mica	226, 460	R10 50,000 ohms, ½ watt 600, 315
LI5, LI6 2nd I.F. fransformer 8287-Z, 8281	C28	100 uuF mica	224, 261	RII 0.5 megohm, volume control 5622
L17 Loudspeaker field coil, 1100 ohms.	C29	0.1 uF paper, 400v. working	228, 121	R12 I.6 megohms, I watt 600, 545 or 600, 745
CAPACITORS.	C30	50 uuF mica	224, 255	R13 1.6 megohms, ½ watt 600, 345
CL 2-20 uuE air trimmer 3661	C31	200 uuF mica	224, 267	R14 2.5 megohms, ½ watt 600, 349
C2 2-10 uuE air trimmer 3658	C32	0.1 uF paper, 400v.	228 121	R15 0.5 megohm, ½ watt 600, 335
C3 12-430 uuF variable tun-	C33	0.01 uF paper, 600v.	228 201	R16 32 ohms, 3 watt, wire wound 602, 351
C3 12-430 uuF variable tun-	C34	0.1 uF paper, 400v.	228 121	R17 0.2 megohm, 1 watt 600, 527 or 600, 727
ing (ganged) 10010	C35	01 uE paper 400v	220, 121	RI8 50,000 ohms, I watt
		working	228, 121	R19 50.000 ohms + watt 600 315
C5 4 dur mica 227, 233	C36	16 uF, 600 P.V. electr	0-	R20 0.4 megohms, ½ watt 600, 333
C6 2-10 uuF air frimmer 3658	C 27		EE10576	R21 0.1 megohm, 1 watt 600, 321
C7 2-10 uuF air frimmer 2658	C3/	8 ur, 600 P.v. electr lytic	EE010853	R22 250 ohms, 3 watt 602, 369
C8 12-430 uuF variable tun- ing (ganged) 16816	C38	0.005 uF paper, 600v. working	228, 295	R23 0.1 megohm, tone con- trol 4540
C9 0.1 uF paper, 400v. , working 228, 121	C39	1,500 uuF mica	13213†	TRANSFORMERS.
C10 200 uuF mica 224, 267	C40	0.01 uF paper, 600v. working	228, 301	TI Power Transformer 50-60
CII 70 uuF mica 13211	† \| \| C41	25 uF, 40 P.V. electr	·o-	C.P.S. 11344A
Cl2 0.1 uF paper, 400v. working 228, 121	C42	lytic 0.05 uE paper 400v	ET10769	Power Transformer 40 C.P.S. II346A
CI3 0.05 uF paper, 400v. working 228, 115		working	228, 115	T2 Loudspeaker Transformer XAI
CI4 3640 uuF mica, + 2½% 13213	\| C43 \|	working	228, 289	SWITCHES.
CI5 2-10 uuF air trimmer 3658		RESISTORS.		SI Range, 3 wafer, 2 posi- tion, rotary 16328
C16 470 uuF mica, + 2½% 13212	t RI V	l megohm, 4 watt	600, 341	Wafer I 16328/1
CI7 14 uuF mica 13211	R2	320 ohms, 1 watt	600, 471	Wafer 2 16328/2
C18 2-20 uuF, air trimmer 3661	R3	I megohm 4 watt	600. 341	Wafer 3 16328/3
CI9 12-430 uuF variable tun- ing (ganged) 16816	R4	50,000 ohms, ½ watt	600, 315	(NOTE: Wafers numbered from front of chassis.)

* Part number of winding only.

† Capacitance and tolerance (if shown) to be quoted.

Page 8

CIRCUIT DIAGRAM-Model 600-T

Page 9

CIRCUIT DIAGRAM—Model 601-T