Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5

Honest Restoration reviews
#16

(03-13-2015, 12:52 PM)Mondial Wrote:  Brockrak, whoever you decide to use to restore your radio, make sure they use polyester or polypropylene film capacitors for the power supply filters. 

Many so called restorers will try to use tiny modern electrolyic capacitors for the original low capacitance paper filter caps. Todays 1 and 2 microfarad electrolytics caps were not designed to withstand the high ripple currents they would be subjected to in this service and will fail in a short time. Film caps on the other hand are designed for such conditions and will last almost indefinitely.

In fact, in discussing restoration of your 87 with prospective restorers, mention the original paper filter caps and what they plan to replace them with. If they say electrolytic caps and do not understand the potential problems, look elsewhere!


Thank you all for your wealth of knowledge
#17

Mondial  is correct as always. I put some electrolytics in my 87 and it worked fine for about 6 months. The input cap shorted and it started to eat the 80 tube. They get a nasty angry red glow in the plates. Then poof goes the 80 or the 80 and the power transformer. The e caps where cheaper but not in the long run.
Terry
#18

Where are you located? If we knew that, maybe someone could point you to a local forum member or repair person.

Have you checked for any antique radio or wireless clubs in your area? Or even a ham radio club? A lot of those guys also work on old electronics.
#19

Brockkrak is in Baltimore and I pointed him to MAARC as a possible local resource in an earlier post but there may be other mid-Atlantic folks who could help him.




Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
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
Gilfillan Brothers Car Radio?
Hi everyone,  Special thanks to Joe Rossi for tracking down this obscure radio and thanks to others who took up the hun...Antipodal — 08:15 PM
trying to identify this wire type
Here's one source for your wire of many. Take care and BE HEALTHY! Gary P.S. Can't get the right color you need? I ...GarySP — 06:40 PM
trying to identify this wire type
...and modern wire of the appropriate gauges and insulation V-rating (300V minimum, usually shown right on the wire) is ...morzh — 05:47 PM
1930s Stromberg-Carlson Tombstone Radio need help identifying model number
I have a question about this radio, is there anyone that has access to this radio that has an intact unmolested speaker ...captainclock1988 — 04:28 PM
1930s Stromberg-Carlson Tombstone Radio need help identifying model number
Well what makes me confuse all of those companies is that all three of those companies (Setchell-Carlson, Stromberg-Carl...captainclock1988 — 04:21 PM
trying to identify this wire type
The red wire is rubber covered wire. The others are cotton braid over rubber often in colors or a tracer, also strand...Chas — 02:43 PM

[-]
Who's Online
There are currently 6078 online users. [Complete List]
» 1 Member(s) | 6077 Guest(s)
Avatar

>