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

Philco 37-690
#37

Okay!

After stopping for a planned three day excursion into Ohio last weekend, during which time I attended my first ever Midwest Audiofest at Parts Express in Springboro, my thoughts are turning back to buttoning up this 37-690 and getting it ready to go home to its new owner.

I am just not comfortable with the amount of heat generated by the 3K and 2.2K chassis mounting resistors. They make that portion of the chassis get really hot...way too hot to keep my hand on...and a lot of components are in that area including output tube sockets, the special sockets for the cables going up to the upper chassis, and the speaker cabling. Plus, both power transformers are close by.

I have made an executive decision to replace the chassis mount resistors I installed (3K & 2.2K) with ceramic resistors that mount on the chassis but do not use the chassis as a heat sink.

I will also mount them away from the mass of components where the original Candohm was, and where the chassis mount replacements currently are.

I'll get the parts ordered this weekend.

--
Ron Ramirez
Ferdinand IN


Messages In This Thread
Philco 37-690 - by Ron Ramirez - 05-30-2014, 08:22 PM
RE: Philco 37-690 - by morzh - 05-30-2014, 08:31 PM
RE: Philco 37-690 - by Eliot Ness - 05-30-2014, 08:42 PM
RE: Philco 37-690 - by morzh - 05-30-2014, 09:16 PM
RE: Philco 37-690 - by Ron Ramirez - 05-30-2014, 09:29 PM
RE: Philco 37-690 - by Eliot Ness - 05-30-2014, 09:41 PM
RE: Philco 37-690 - by morzh - 05-30-2014, 10:49 PM
RE: Philco 37-690 - by Arran - 05-31-2014, 02:10 AM
RE: Philco 37-690 - by Eliot Ness - 05-31-2014, 08:14 AM
RE: Philco 37-690 - by Joeztech - 06-01-2014, 08:58 PM
RE: Philco 37-690 - by Ron Ramirez - 06-02-2014, 05:32 AM
RE: Philco 37-690 - by Phlogiston - 06-02-2014, 09:45 AM
RE: Philco 37-690 - by Ron Ramirez - 06-02-2014, 09:53 AM
RE: Philco 37-690 - by Phlogiston - 06-02-2014, 12:04 PM
RE: Philco 37-690 - by morzh - 06-02-2014, 12:28 PM
RE: Philco 37-690 - by Phlogiston - 06-02-2014, 12:34 PM
RE: Philco 37-690 - by bfrohwein - 06-02-2014, 01:03 PM
RE: Philco 37-690 - by Phlogiston - 06-02-2014, 02:09 PM
RE: Philco 37-690 - by Ron Ramirez - 06-02-2014, 05:21 PM
RE: Philco 37-690 - by Phlogiston - 06-02-2014, 09:03 PM
RE: Philco 37-690 - by bfrohwein - 06-03-2014, 12:14 AM
RE: Philco 37-690 - by Eliot Ness - 06-03-2014, 09:10 AM
RE: Philco 37-690 - by Ron Ramirez - 06-13-2014, 08:11 AM
RE: Philco 37-690 - by y2kbruce - 06-13-2014, 03:09 PM
RE: Philco 37-690 - by morzh - 06-13-2014, 03:10 PM
RE: Philco 37-690 - by Ron Ramirez - 06-13-2014, 03:59 PM
RE: Philco 37-690 - by Ron Ramirez - 07-01-2014, 09:28 PM
RE: Philco 37-690 - by Arran - 07-01-2014, 11:44 PM
RE: Philco 37-690 - by Ron Ramirez - 07-02-2014, 05:31 AM
RE: Philco 37-690 - by jerryhawthorne - 07-02-2014, 03:37 PM
RE: Philco 37-690 - by Ron Ramirez - 07-03-2014, 10:58 PM
RE: Philco 37-690 - by morzh - 07-03-2014, 11:19 PM
RE: Philco 37-690 - by Ron Ramirez - 07-04-2014, 11:45 AM
RE: Philco 37-690 - by morzh - 07-04-2014, 12:40 PM
RE: Philco 37-690 - by Ron Ramirez - 07-05-2014, 07:29 AM
RE: Philco 37-690 - by morzh - 07-05-2014, 09:40 AM
RE: Philco 37-690 - by Ron Ramirez - 07-17-2014, 08:55 PM
RE: Philco 37-690 - by Mondial - 07-17-2014, 09:56 PM
RE: Philco 37-690 - by Ron Ramirez - 07-18-2014, 05:51 AM
RE: Philco 37-690 - by Mondial - 07-18-2014, 06:43 AM
RE: Philco 37-690 - by Ron Ramirez - 07-18-2014, 07:26 AM
RE: Philco 37-690 - by Ron Ramirez - 07-18-2014, 07:30 AM
RE: Philco 37-690 - by Mondial - 07-18-2014, 08:02 AM
RE: Philco 37-690 - by morzh - 07-18-2014, 09:10 AM
RE: Philco 37-690 - by Ron Ramirez - 07-18-2014, 10:00 AM
RE: Philco 37-690 - by Phlogiston - 07-18-2014, 10:01 AM
RE: Philco 37-690 - by Mondial - 07-18-2014, 03:12 PM
RE: Philco 37-690 - by morzh - 07-18-2014, 04:03 PM
RE: Philco 37-690 - by y2kbruce - 07-18-2014, 05:37 PM
RE: Philco 37-690 - by Ron Ramirez - 07-18-2014, 05:48 PM
RE: Philco 37-690 - by morzh - 07-18-2014, 06:33 PM
RE: Philco 37-690 - by Ron Ramirez - 07-18-2014, 07:21 PM
RE: Philco 37-690 - by Ron Ramirez - 07-20-2014, 09:16 PM
RE: Philco 37-690 - by Ron Ramirez - 07-21-2014, 07:21 PM



Users browsing this thread: 8 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.

>