Atwater Kent Mfg. Co.

Model 165 (2nd), 185, and 525
Schematic, socket

For parts list see index.

ATWATER KENT MFG. CO.

Model 165 Schematic, socket

IF PEAK 262.5 KC.

In late type 165, the 1st-detector bias resistor R2 is 2000 ohms, 1/2 watt
In a few early 165 sets, the tracking condenser C3 is 680MMF.
In late sets, C1 is 25MMF instead of 50MMF.
The additional primary, shown in dotted lines on No. 1 R.F.T., is used in some 165 sets.

Atwater Kent Mfg. Co.

Model 155 (3rd type)
Model 165
Parts List

Parts and Price List for 3rd Type Model 155, No. 32800
Above serial No. 7088700

For parts not listed below, please order by description or name of part and model number of set.

Cabinet complete

Part No.	Name of Part
24293	Volume control, complete, less leads, .5 meg
24722
24955	Triple dry electrolytic condenser 8, 8, 8MF, 150 volts
*25317	Variable condenser rotor stator and frame (23 plates)

* In 1st and 2nd type Model 155, the variable condenser is No. 24561 (21 plates).

Transformers

Dia. Code No.	Part No.	Name of Part
T-1	32210	No. 1 R.F. transformer
T-2	32220	No. 2 R.F. transformer
T-3	32190	Oscillator transformer
T-4	31790	No. 1 I.F. transformer
T-5	31780	No. 2 I.F. transformer
T-6	24897	Output transformer

Resistors

Part No.	Name of Part
25309	Cabinet, complete
24293	Volume control and on-off switch (.5 meg)
25022	Variable condenser
25312	Police and tone control switch, complete
25311	Switch base, complete
25226	Switch shaft and blade

Fixed Condensers

No. 24942 Speaker

Dia. Code No.	Part No.	Name of Part
C-1	30260	50MMF, letter E stamped on washer
C-2	31180	680MMF, 100 volts
C-3	32760	.1MF, 100 volts
C-16	32760	.2MF, 100 volts
C-4	31530	.1MF, 100 volts
C-5	33640	.001MF, 450 volts
C-6	33630	250MMF (double) 450 volts
C-7	23250	.01MF, 450 volts
C-8	27630	.01 MF, 200volts
C-9	27630	.01 MF, 200 volts
C-10	31890	.05 MF, 100 volts
C-12	31890	.05 MF, 100 volts
C-13	31890	.5 MF, 100 volts
C-14	26660	.1 MF, 200 volts

Part No.	Name of Part
24942	Speaker, complete
24897	Output transformer, (T-6)
25053	Field coil (2500 ohms)
24895	Cone assembly

Miscellaneous Parts

Part No.	Name of Part
24908	Instruction and log card (F-1056)
24733	110-volt cable and plug
24727	Antenna lead (30 feet)
24278	Knob for volume control or station selector
24892	A.C. - D.C. current switch

Parts and Price List for Model 165, No. 34,000

Part No.	Name of Part
25309	Cabinet, complete
24293	Volume control and on-off switch (.5 meg)
25022	Variable condenser
25312	Police and tone control switch, complete
25311	Switch base, complete
25226	Switch shaft and blade

Transformers

Dia. Code No.	Part No.	Name of Part
T-1	32430*	No. 1. R.F.T.
T-2	32440	No. 2 R.F.T.
T-3	32450	Oscillator transformer
T-4	32620	No. 1 I.F. transformer
T-5	32630	No. 2 I.F. transformer
T-6	21672	A.F. output transformer
T-7	25191**	Power transformer

* In some sets, T1 has an extra winding as shown in dotted lines on page 3. The part number of this transformer is 33820.
** Some early model 165 sets use a 75 tube instead of 2A6 . These sets require a No. 25307 power transformer which has an extra winding to provide 6 volts for the 75 filament.

Resistors

Dia. Code No.	Part No.	Name of Part
R-1	30350	Black and purple, .5 meg, 1/3 watt
*R-2	33250	Blue, 2000 ohms, 1/3 watt
R-3	28950	Flexible, 160 ohms
R-4	30380	Red and green, 3300 ohms, 1/3 watt
R-5	20980	Red and blue, .1 meg, 1/2 watt
R-6	30340	Red and blue, .1 meg, 1/3 watt
R-7	30370	Green 2 meg, 1/3 watt
R-8	30340	Red and blue, .1 meg, 1/3 watt
R-9	31970	Red and yellow, .25 meg, 1/3 watt
R-10	31970	Red and yellow, .25 meg, 1/3 watt
R-11	32010	Blue, red and green, 500 ohms, 1 watt
R-12	30350	Black and purple, .5 meg, 1/3 watt
R-13	30370	Green, 2 meg, 1/3 watt
R-14	31860	Flexible, 1 ohm, yellow covered

* In early 165, R-2 is No. 30380 red and green, 330 ohms, 1/3 watt.

Condensers

Dia. Code No.	Part No.	Name of Part
*C-1	30260	50MMF, Letter E stamped on washer
C-2	33660	.0022MF, 400 volts
**C-3	25638	730 MMF, 100 volts
C-4	33660	.0022MF, 450 volts
C-5	32360	.05, .05 and .05 MF, 100 volts
C-6	32350	.05, .05 and .2 MF, 200 volts
C-7	33630	250MMF (double), 450 volts
C-8	33630	250MMF (double), 450 volts
C-9	23250	.01 MF, 450 volts
C-10	27630	.01 MF, 200 volts
C-11	25167	4MF, 20 volts dry electroclytic
C-12	27630	.01MF, 200 volts
C-13	25168	8MF, 475 volts, electrolytic
C-14	25168	8MF, 475 volts, electrolytic
C-15	32740	.003MF, 500 volts

* In late sets C1 is 25MMF, No 33650.
** In early 165, C-3 is No. 31180, 680MMF, 100 volts.

Miscellaneous Parts

Part No.	Name of Part
25194	Cloth screen
25213	Cabinet foot
24278	Station selector and volume control knob
25145	Police and tone control switch knob
24323	Power transformer cover (2 used)
24554	I.F.T. shield and trimmer (A5)
19566	110 volt cable and plug
24732	110 volt plug
15404	2.5 volt dial lamp
22683	Tube shield
24549	Dial assembly
31870	Trimmer A6
24495	Trimmer A4
25196	Speaker socket
24492	Rectifier socket
24494	Small 6-prong socket (3 used)
22733	Large 6-prong socket (1 used)
25049	Instruction and log card (F-1059)
25186	Switch instruction tag
25189	Shipping container

No. 34100 Speaker for Model 165

Part No.	Name of Part
18870	Field coil (2000 ohms)
21672	Output transformer (T6)
21161	Diaphragm
25179	Cable and plug
25308	Speaker plug (3-prong)

Atwater Ken Mfg. Co.

Model 165 (2nd), 185 and 525
Socket, trimmer, parts

2nd Type Model 165

Part No.	Name of Part
25309	Cabinet Complete
24293	Volume control, .5 U
25022	Variable condenser
25312	Police and tone control switch complete
25311	Switch base complete
25226	Switch shaft and blade
24278	Knob volume and tuning
25145	Knob - tone
15404	Dial lamp, 2.5V

Transformers

Code No	Part No.	Name of Part
T1	33820	No. 1 R.F.T.
T2	32440	No. 2 R.F.T.
T3	32450	Osc. T.
T4	32620	No. 1 I.F.T.
T5	32630	No. 2 I.F.T.
T6	21672	Output T.
T7	25191	Power T.

Resistors

Code No	Part No.	Name of Part
R1	30350	Bl'k-purple, .5 U, 1/3 W
R2	33250	Blue, 2000 ohm, 1/3 watt
R3	28950	Flexible, 160 ohms
R4	30380	Red-green, 3300 ohms, 1/3 W
R5	20980	Red-blue, .1 U, 1/2 W
R6	30340	Red-blue, .1 U, 1/3 W
R7	30370	Green, 2 U, 1/3 W
R8	30340	Red-blue, .1 U, 1/3 W
R9	31970	Red-yel, .25 U, 1/3 W
R10	31970	Red-yel, .25 U, 1/3 W
R11	32010	Blue-red-green, 500 ohm, 1 W
R12	30350	Bl'k-purple, .5 U, 1/3 W
R13	30370	Green, 2 U, 1/3 W
R14	31860	Flexible, 1 ohm
R15	34340	Yel-bl'k-red, 50,000 ohm, 1 1/2 W
R16	36430	Yel-blue, 5000 ohm, 1/3 W

Condensers

Code No	Part No.	Name of Part
C1	33650	25 MMF, 500 V
C2	33660	.0022 MF, 250 V, IND.
C3	25638	730 MMF, 100 V
C4	33650	.0022 MF, 450 V, IND.
C5	32410	.05, .05 and .05 MF, 100 V, IND.
C6	32390	.05, .05 and .2 MF, 200 V, IND.
C7	33630	250 MMF (double), 450 V, IND.
C8	33630	250 MMF (double), 450 V, IND.
C9	23250	.01 MF, 450 V
C10	27630	.01 MF, 200 V, IND.
C11	25379	10 MF, dry electrolytic, 25 V
C12	33660	.02 MF, 200 V, IND.
C13	25168	8 MF, 475 V, electrolytic
C14	26381	8 MF, 450 V, electrolytic (blue)
C15	32740	.003 MF, 500 V

Trimmer Condensers

Code No	Part No.	Name of Part
A4	24495	Single I.F.
A5	24554	Single I.F. (Includes I.F. shield)
A6	33080	Single I.F.

Sockets

Part No.	Name of Part
25196	Speaker
24492	Rectifier
24494	Small 6 prong (3 used)
22733	Large 6 prong (1 used)

Miscellaneous

Part No.	Name of Part
25194	Cloth screen
25213	Cabinet feet
24323	Power T. cover (2 used)
24554	I.F. shield and trimmer, A5
19566	110V cable and plug
24549	Dial assembly
25745	Name decalcomania
25965	Tone decalcomania
26706	Vernier shaft
26707	Vernier cap
26708	Ball bearing
26709	Trimmer screw
26711	Trimmer washer
27133	Trimmer mica
22683	Tube shield
26671	Instruction and log card, F1109
25189	Shipping container

165-185 Speaker No. 34100

Part No.	Name of Part
18870	Field coil (2000 ohms)
21672	Output T. (T6)
21151	Diaphragm
25179	Cable and plug
25308	Speaker plug (3 prong)
23657	Choke (CK1)

Model 185
(For parts not listed below refer to Model 165)

Part No.	Name of Part
26702	Cabinet
26602	Screen
25865	Dial window
26544	Escutcheon name plate
36580	Tone control switch complete
25814	Knob (volume and tuning)
25738	Knob (tone)
26481	Tone decalcomania
26618	Shipping container

Model 525
(For parts not listed below refer to Model 165)

Part No.	Name of Part
26565	Variable condenser
27305	Knob shaft
26519	Dial assembly
26569	Knob (volume and tuning)
26571	Knob (tone)
26545	Escutcheon name plate
25691	Dial window
26564	Volume control, .5 U
36590	Tone control switch complete
26669	Shipping container

525 Speaker No. 38500

Part No.	Name of Part
18870	Field coil (2000 ohm)
21672	Output T. (T5)
19465	Diaphragm
25179	Cable and plug
25308	Speaker plug (3 prong)