Welcome Guest! Be sure you know and follow the Phorum Rules before posting. Thank you and Enjoy! (January 12, 2025) x

Thread Closed

Advice on Philco 70A basket case
#25

Hi Mark,

1/2 lb won't be enough. 6185 ft will give you about 2565 ohms. You can use this calculator to get what you need. http://www.cirris.com/testing/resistance/wire.html You will need around 8000 ft. That will give you 3318 ohms. I measured the resistance on my other 90 and it came out to 3.2k ohms. There is about 414 ohms/1000ft. One pound has about 13000 feet in it. I have some old wire and I think it came from my rebuild. It mikes out between #36 and #35. I said you need a pound and I made a mistake. I think they sold me 3/4 lb and I didn't get it all on. I came up with 2.7k and had to install a wirewound under the chassis to make up the difference. It's been 5 1/2 years since that project and there has been a lot of water under the bridge.

I don't think the meter was hooked up to anything. It does that in the idle mode. Looks impressive though doesn't it?

Terry


Messages In This Thread
Re: Advice on Philco 70A basket case - by morzh - 11-15-2011, 12:08 PM
Re: Advice on Philco 70A basket case - by Terry Burns - 11-18-2011, 03:28 PM
Re: Advice on Philco 70A basket case - by Arran - 11-20-2011, 01:19 AM



Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
54C Complete Teardown/Rebuild
Hello Roy, here is this one sincerely Richardradiorich — 12:45 AM
54C Complete Teardown/Rebuild
Richard, Had grabbed it already but thank you just the same.  I find myself wanting to find some way to block out the...glyphmon — 12:03 AM
54C Complete Teardown/Rebuild
Hello roy, here is a link to the schematic . Sincerely Richardradiorich — 11:54 PM
54C Complete Teardown/Rebuild
Richard, The Silvertone 2014 also is a transformerless set, so I am incorporating a 1:1 600 ohm audio isolation transfo...glyphmon — 11:37 PM
Preliminary work on wife's Silvertone 2014
Did an alignment today which was interesting.  IF alignment went great, almost all was already spot-on.  Adjusting on th...glyphmon — 11:35 PM
54C Complete Teardown/Rebuild
The main problem with adding a Bluetooth input is that this set lacks a traditional power transformer to isolate it from...radiorich — 11:19 PM
54C Cabinet Refinish
I started stripping this cabinet before it got super chilly out because I knew I wasn't going to be able to work on ...glyphmon — 11:18 PM
54C Complete Teardown/Rebuild
While I'm waiting to wrap up the final steps on my wife's Silvertone 2014, I started disassembly on the next project.  O...glyphmon — 11:07 PM
Preliminary work on wife's Silvertone 2014
Hello roy, that great news glad it worked out for you !! Sincerely Richardradiorich — 10:50 PM
Preliminary work on wife's Silvertone 2014
Safety caps arrived today.  Soldered one in and had a successful first power-up.  No magic smoke escaped and it tunes in...glyphmon — 09:53 PM

[-]
Who's Online
There are currently no members online.

>