35A5 tube substitution

Thread Rating:

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

Linear Mode

35A5 tube substitution

wally73
Junior Member

Posts: 25
Threads: 4
Joined: Nov 2015
City: mineral wells tx

#10

03-15-2017, 08:36 AM

Ok I have ordered a new 35A5 tube . Meanwhile I measured the heater voltages on all the tubes.
Here are the results: on all the "7 tubes" I got 5.3 volts. On the 35Z3 I got 32 v, on the 50A5 I got 45 v .

Does this mean that the circuit has been modified to provide more voltage for the 50A5 or does it just naturally have more voltage on it by virtue of the tube structure, in other words it demands more so it gets more voltage.?? thanks
walt

Find

« Next Oldest | Next Newest »

Messages In This Thread

35A5 tube substitution - by wally73 - 03-13-2017, 10:47 AM

RE: 35A5 tube substitution - by sam - 03-13-2017, 11:57 AM

RE: 35A5 tube substitution - by David - 03-13-2017, 12:11 PM

RE: 35A5 tube substitution - by TV MAN - 03-13-2017, 12:37 PM

RE: 35A5 tube substitution - by Radioroslyn - 03-13-2017, 02:59 PM

RE: 35A5 tube substitution - by wally73 - 03-13-2017, 04:54 PM

RE: 35A5 tube substitution - by wally73 - 03-13-2017, 04:57 PM

RE: 35A5 tube substitution - by Arran - 03-13-2017, 11:43 PM

RE: 35A5 tube substitution - by wally73 - 03-14-2017, 04:18 PM

RE: 35A5 tube substitution - by wally73 - 03-15-2017, 08:36 AM

RE: 35A5 tube substitution - by Mondial - 03-15-2017, 09:13 AM

RE: 35A5 tube substitution - by wally73 - 03-15-2017, 10:05 AM

RE: 35A5 tube substitution - by Mondial - 03-15-2017, 11:29 AM

RE: 35A5 tube substitution - by wally73 - 03-15-2017, 11:45 AM

RE: 35A5 tube substitution - by Radioroslyn - 03-15-2017, 02:03 PM

RE: 35A5 tube substitution - by wally73 - 03-15-2017, 06:00 PM

RE: 35A5 tube substitution - by TV MAN - 03-16-2017, 11:37 PM

RE: 35A5 tube substitution - by wally73 - 03-17-2017, 07:12 AM

View a Printable Version

Users browsing this thread: 3 Guest(s)

Recent Posts
HiFi (Chifi) tube amp build - but my own design.
Tim, nice write up and thanks for sharing !! Sincerely Richardradiorich — 02:47 AM
HiFi (Chifi) tube amp build - but my own design.
Well, this was a real "Hum-Dinger" :lol: ! This will be kinda long, but hopefully it will help others having t...TV MAN — 01:55 AM
Shadow Meter Bulb
Phorum members, I am trying to find the bulb # for PHILCO Shadow Meter part number 45-2180 that is from a 37-640 chassis...georgetownjohn — 06:53 PM
Philco 41-608 changer coupler
3D-printing...short of machining, of course. Or molding.morzh — 05:20 PM
Philco 41-608 changer coupler
Thanks, Morzh. That solves the issue of the rubber pieces. Now, I need to find a way to replicate the pot metal piec...alangard — 05:07 PM
12' Philco
If it is 12', either Kareem or Andre would have to jump pretty high to look at the front panel. Kareem would have an e...morzh — 01:48 PM
12' Philco
And here's a story about the tires on the truck. Same "no-stoop" guy must have installed these! Take care a...GarySP — 01:17 PM
Hickok AC51 tube tester
I think they have only shown the secondaries of the transformer. Two of them feed the rectifiers' filaments.morzh — 12:58 PM
IF can wire size and Rubber mounts?
Arran If the wire inside cans is the gauges you mentioned, the sole reason for that would be mechanical, to stiffen t...morzh — 12:56 PM
12' Philco
Rod, Yes, I know, but the Giant Philco is not around anymore either, so I go by whoever was alive fairly recently. H...morzh — 12:54 PM

Who's Online
There are currently no members online.

Login
Username:
Password:	Lost Password?
	Remember me