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SOME RECENT REPAIRS - SUMMARY BILLINGS

PHILCO 37-60

This radio was a real challenge. The owner wanted the radio fixed, but also wanted the electromagnetic speaker replaced with a PM type. The speaker itself was heavily damaged and the radio appeared to be water soaked. (The owner said it was not). See Figure 1.

The Electrolytics had already, many moons ago, been replaced with large under chassis caps. The line cord was shot. All the remaining capacitors looked to be 65+ years of age - little time bombs waiting to go off. The power transformer appeared to be ok as did the rotary switch for band changes.
Ultimately two tubes had to be replaced - a 6Q7 and a 6F6.

Owner: XXXXXX
Radio: Philco 37-60
Date: 11/17/2007

Figure 1

CHARGES

Replace Electrolytics
New Dial
Check Alignment/Tubes
New Line cord NC
Replace 6Q7tube
Replace 6F6 tube
Re-design/layout/PS
Replace choke – 25W
Replace 6 capacitors
Install audio transformer
8 ohm 8 “ speaker
Return Shipping

STATEMENT ON FINAL CONDITION

Radio plays very well. New line cord installed. All tubes check good or better. 6F6 and 6Q7 tubes replaced. New reproduction dial installed. Back plate tuning light focus repaired. Radio converted from electromagnetic speaker to 8” – 8 ohm replacement speaker. Power supply field choke converted to 25 watt 1.2K ohm high dissipation resistor. New 5K/8 ohm audio transformer installed. New Electrolytics (3) installed. Six paper capacitors replaced. Quick disconnect speaker terminals installed. New antenna terminal installed. Best reception with 5 foot wire, though radio reception ok without antenna– very sensitive. All controls treated with DEOXIT.

THE FINISHED SET!

EMERSON 501

Owner: XXXXXX
Radio: Emerson 501
Date: 12/7/2024
CHARGES

Replace Electrolytics(2)
Check Tubes
Replaced Dial Lamp NC
Replace line cord
Replace 4 capacitors

STATEMENT ON FINAL CONDITION

All tubes tested OK – two are on the marginal side. Electrolytics replaced. All paper capacitors replaced. Dial lamp replaced. Line cord replaced. [CAUTION – Chassis is hot even when the radio is turned off – by original design]. Reception is good. Tone is clear.

Crosley 11-101U

STATEMENT ON FINAL CONDITION

Radio plays well and is sensitive. Electrolytics replaced. 12SQ7 (tube) replaced. Two capacitors (.05 and .1 mfd) replaced. First IF transformer was defective with silver-mica “disease” – common in this vintage set with sheet based IF capacitors. IF transformer rebuilt, removing original silver-mica caps and placing replacements out board under chassis. Symptoms of this are unusual background hiss and pops with declining volume of received signal. Line cord was ok with credit given for not replacing. All tubes now check good or better.

SCHEMATIC

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