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

Thread Closed

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: 1 Guest(s)
[-]
Recent Posts
Philco P45-6365 Universal Transformer Instruction Manual
Can anyone guide me to where this may be found?GRG — 03:00 PM
54C Complete Teardown/Rebuild
I don't think that I have encountered a 12Z3 before, curious how it uses one of those but includes a #43, which is a 25 ...Arran — 02:17 PM
HiFi (Chifi) tube amp build - but my own design.
It's the other forum. I'm also in DIY, but mostly read there. Honestly, I kinda jumped into this without much thought to...TV MAN — 10:43 AM
Philco 71 Code 125
Hello,  I am in need of a schematic for this radio. Mine has the three separate circular tube shields and a shadow me...dconant — 08:06 AM
Stromberg Carlson 1500 Squeal
And life just keeps getting more complicated.dconant — 07:57 AM
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

[-]
Who's Online
There are currently 1539 online users. [Complete List]
» 1 Member(s) | 1538 Guest(s)
Avatar

>