Admiral 7T15 Schematic

Admiral 7T15

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Product Information:
Model:7T15
Manufacturer:Admiral
Description:5K1, UL5K1

Schematics Content

Page 2:

Loctal tubes 14B6, 50A5, 35Y4 used as alternates for 125Q7, 50L6, 3525 respectively. See tube manual for pin numbers.

ALIGNMENT PROCEDURE

1. Check pointer setting: With gang closed, the pointer should be horizontal.
2. Connect Output Meter across Voice Coil.
3. Turn Receiver Volume Control full on.

4. Use lowest Output setting of Signal Generator capable of producing adequate Output Meter indication and then proceed as outlined in chart below.
5. Repeat adjustments to insure good results.

Note: In some sets, thc B and D adjustments must be made from the underside of the chassis.

Page 3:

TUBE AND TRIMMER LOCATION Loctal tubes 14B6, 50A5, 35Y4 used as alternates for 12SQ7, 50L6, 3575 respectively. See tube manual for pin numbers.

VOLTAGE DATA

All readings made between tube socket terminals and B minus (Terminal of on-off switch).
Voltages measured on a 117 Volt A.C. line.
Dial turned to low frequency end, no signal.
Voltages measured with a vacuum-tube voltmeter. A second voltage reading (marked with an asterisk *) indicates readings made with a 1000 ohm-per-volt meter when use of this instrument would result in appreciably lower readings.