Philco 40-130T

Thread Rating:

0 Vote(s) - 0 Average
1
2
3
4
5

Linear Mode

Philco 40-130T

Ron Ramirez
Silent Key

Posts: 13,776
Threads: 580
Joined: Sep 2005
City: Ferdinand State, Province, Country: Indiana

08-17-2013, 09:24 PM

Hi, and welcome - we're glad you've joined us! Icon_biggrin

7C5 is listed as a substitute for a 7B5. The 7B5 is more like a 6K6 or 41 in characteristics, while a 7C5 is more like a 6V6. Not exactly the same - grid biasing is different between the two. I think I would go back to the 7B5 if I were you, but no real harm will be done in using a 7C5.

There is no point in buying an entire set of tubes if you don't need them - this just lowers the availability of the other tubes for people who do need them. They aren't making these anymore, folks...so just buy what you need. That's my opinion.

--
Ron Ramirez
Ferdinand IN

Find

« Next Oldest | Next Newest »

Messages In This Thread

Philco 40-130T - by wireless - 08-17-2013, 07:25 PM

RE: Philco 40-130T - by Ron Ramirez - 08-17-2013, 09:24 PM

RE: Philco 40-130T - by wireless - 08-18-2013, 02:07 AM

RE: Philco 40-130T - by codefox1 - 08-18-2013, 10:45 AM

RE: Philco 40-130T - by Paul Philco322 - 08-18-2013, 11:16 AM

RE: Philco 40-130T - by wireless - 08-19-2013, 11:01 AM

RE: Philco 40-130T - by Paul Philco322 - 08-24-2013, 09:41 PM

RE: Philco 40-130T - by wireless - 08-27-2013, 05:26 PM

RE: Philco 40-130T - by wireless - 08-29-2013, 03:54 PM

RE: Philco 40-130T - by audiomagnate - 08-29-2013, 08:53 PM

RE: Philco 40-130T - by wireless - 08-29-2013, 09:11 PM

RE: Philco 40-130T - by Paul Philco322 - 09-04-2013, 08:56 PM

RE: Philco 40-130T - by Ron Ramirez - 09-05-2013, 05:42 AM

RE: Philco 40-130T - by audiomagnate - 09-05-2013, 12:20 PM

RE: Philco 40-130T - by wireless - 09-13-2013, 05:41 PM

RE: Philco 40-130T - by Art Hoch - 09-19-2013, 05:58 PM

RE: Philco 40-130T - by Art Hoch - 09-19-2013, 06:00 PM

RE: Philco 40-130T - by Ron Ramirez - 09-19-2013, 07:31 PM

RE: Philco 40-130T - by jerryhawthorne - 09-19-2013, 07:53 PM

RE: Philco 40-130T - by Radioroslyn - 09-19-2013, 10:18 PM

RE: Philco 40-130T - by wireless - 09-21-2013, 05:41 PM

RE: Philco 40-130T - by wireless - 10-03-2013, 01:31 PM

RE: Philco 40-130T - by wireless - 10-04-2013, 05:17 PM

RE: Philco 40-130T - by jerryhawthorne - 10-04-2013, 06:06 PM

RE: Philco 40-130T - by Jamie - 10-04-2013, 06:09 PM

RE: Philco 40-130T - by wireless - 10-04-2013, 06:52 PM

RE: Philco 40-130T - by wireless - 10-06-2013, 05:39 PM

RE: Philco 40-130T - by jerryhawthorne - 10-06-2013, 05:58 PM

RE: Philco 40-130T - by wireless - 10-07-2013, 04:11 PM

RE: Philco 40-130T - by Warren - 10-07-2013, 05:55 PM

RE: Philco 40-130T - by George Kirk - 10-08-2013, 01:44 PM

RE: Philco 40-130T - by wireless - 10-10-2013, 11:07 AM

RE: Philco 40-130T - by wireless - 10-10-2013, 05:44 PM

RE: Philco 40-130T - by George Kirk - 10-10-2013, 07:23 PM

RE: Philco 40-130T - by wireless - 10-23-2013, 02:06 PM

RE: Philco 40-130T - by wireless - 10-23-2013, 03:10 PM

RE: Philco 40-130T - by Jamie - 10-23-2013, 06:16 PM

RE: Philco 40-130T - by jerryhawthorne - 10-23-2013, 07:30 PM

RE: Philco 40-130T - by wireless - 10-23-2013, 10:36 PM

RE: Philco 40-130T - by Arran - 10-23-2013, 11:07 PM

RE: Philco 40-130T - by Chuck Schwark - 10-24-2013, 09:16 AM

RE: Philco 40-130T - by wireless - 10-24-2013, 04:52 PM

RE: Philco 40-130T - by Chuck Schwark - 10-24-2013, 05:32 PM

RE: Philco 40-130T - by Arran - 10-25-2013, 02:17 AM

RE: Philco 40-130T - by wireless - 10-25-2013, 03:03 PM

RE: Philco 40-130T - by wireless - 11-08-2013, 07:12 PM

RE: Philco 40-130T - by wireless - 11-17-2013, 09:19 PM

RE: Philco 40-130T - by BrendaAnnD - 11-18-2013, 02:44 AM

RE: Philco 40-130T - by wireless - 11-18-2013, 12:07 PM

RE: Philco 40-130T - by wireless - 11-23-2013, 08:58 PM

RE: Philco 40-130T - by wireless - 12-04-2013, 01:35 PM

RE: Philco 40-130T - by wireless - 12-13-2013, 10:59 PM

RE: Philco 40-130T - by wireless - 12-22-2013, 05:35 PM

RE: Philco 40-130T - by jerryhawthorne - 12-22-2013, 05:41 PM

RE: Philco 40-130T - by wireless - 12-22-2013, 05:51 PM

RE: Philco 40-130T - by jerryhawthorne - 12-22-2013, 06:39 PM

View a Printable Version

Users browsing this thread: 12 Guest(s)

Recent Posts
Philco 60 Squealing
I have recapped and replaced out of tolerance resistors and so on. Radio plays nicely on fairly strong stations. The pro...dconant — 10:55 AM
Philco 46-420 Code 121 Reception issues
Welcome Eric, I agree with Bob and far as the two main electrolytic filter capacitors did you change them yourself or w...radiorich — 11:43 PM
Philco 46-420 Code 121 Reception issues
You mentioned the Philco manual and going through the check points...just to be sure we're on the same page here's the m...klondike98 — 08:13 PM
Philco 42-1008 conversion kit
Interesting. I haven't seen that before.klondike98 — 07:02 PM
12' Philco
Yes I had looked for it on the web as well some time back and could not find it. I was glad to see it turned up in Ron'...klondike98 — 06:59 PM
Shadow Meter Bulb
Now if you had a set with a tuning light then the bulb type is important to the circuit, some sets used those prior to t...Arran — 04:58 PM
Shadow Meter Bulb
Ok. Thanks for the correction.RossH — 03:09 PM
Model 28L
For 28 you will probably need to buy a Hammond 125CSE. Or any of the series of the power you need, with SE suffix. Then ...morzh — 02:09 PM
37-60 revision 6
I am restoring a Philco 37-60 and it shows run 6 they removed the ground from G3 of the 6K7G and put the G3 to -2.5v for...bobbyd1200 — 01:01 PM
Shadow Meter Bulb
Mike is correct on the bulb connection, two separate circuits. I found that by rotating the bulb and sliding it forward ...RodB — 12:19 PM

Who's Online
There are currently no members online.

Login
Username:
Password:	Lost Password?
	Remember me