Adding AVC Mod to Philco 70
Posts: 13,776
Threads: 580
Joined: Sep 2005
City: Ferdinand
State, Province, Country: Indiana
It doesn't work
I applied the finishing touches and tried it out.
No joy.
As you will hear in the video below, all it does is produce a noise that starts out as a rapid popping and slowly builds into a buzz.
Ed and Rob, I would like to see photos of the underside of your chassis. I'm wondering if my problem is a parts placement issue. I do have AVC capacitors sharing bakelite blocks with plate/screen bypass caps, and that was probably a mistake.
[Video: https://youtu.be/u31RcTUGY6s]
There's no feeling quite like feeling that you've just wasted the last three weekends...
--
Ron Ramirez
Ferdinand IN
Messages In This Thread
RE: Adding AVC Mod to Philco 70 - by Ron Ramirez - 06-16-2019, 02:00 PM
Users browsing this thread: 5 Guest(s)
|
Recent Posts
|
Philco 16B Parts
|
Thanks for the reply. Unfortunately the radio was removed before bidding was over so I didn't get a chance to bid.dconant — 04:10 PM |
Philco 16B Parts
|
Hi Dan,
Mike is correct, there's a lot of painted stuff on the chassis but it looks pretty good. The sm is all there,sp...Radioroslyn — 03:50 PM |
1930s Stromberg-Carlson Tombstone Radio need help identifying model number
|
Hi Cap'n Clock,
Unfortunately, I do not have this radio. This is a shame because this should be a good performer. 2A...captainclock1988 — 03:43 PM |
Philco 42-390, code 121 speaker
|
Using a 5W 1.5k ceramic resistor in place of the field coil and using a 4 ohm PM speaker, I was able to bring the radi...Stevelog — 02:57 PM |
Philco 60 Squealing
|
I have taken out the 2nd IF and found a problem or not. I believe the coils are litz wire. There is a very small strand ...dconant — 02:13 PM |
Philco 6K7
|
I am restoring a Philco 37-60. The am reception is very good, but the shortwave is very weak. Run 6 Philco removes the g...bobbyd1200 — 01:35 PM |
1930s Stromberg-Carlson Tombstone Radio need help identifying model number
|
Hi Cap'n Clock,
Unfortunately, I do not have this radio. This is a shame because this should be a good performer. 2A5...MrFixr55 — 06:48 AM |
American Bosch Model 802 auto radio
|
I think it would come under either American Bosch or United American Bosch. American Bosch made sets for the American We...Arran — 05:53 AM |
trying to identify this wire type
|
Thanks to all for the feedback. As Arran said, it is probably an older replacement and yes it has a grid cap so I will ...georgetownjohn — 09:32 PM |
trying to identify this wire type
|
It's possible that the red wire, actually a grid cap lead, is a very old replacement, I can't remember seeing a pre 1939...Arran — 09:18 PM |
Who's Online
|
There are currently 5661 online users. [Complete List] » 1 Member(s) | 5660 Guest(s)
|
|
|
|