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

Thread Closed

my 37-630 restoration
#3

Well, I have begun to work on my 37-630. I have rebuilt the input condenser block and re-installed it. I have removed the two electrolytic cans on the chassis and will rebuild them this week. One problem I discovered was that the person who previously worked on it installed part #62 with the negative to ground rather than properly, with the negative to the transformer CT and the positive to raw B+ (see this link for that part of the schematic:  http://pagandad.tumblr.com/image/174532833199  ) Maybe that was why they gave up on it. Too bad they couldn't read a schematic, or even notice the insulation around the bottom of the can, and the little tab with the wire connected to it that went to the negative side of the condenser. Oh well, their loss is my gain. Maybe that's why I got it so cheap. I have been busy ordering those parts I don't already have in my inventory, mostly odd power resistors, 3 watt and 5 watt, to replace some in the B+ supply to various places that were 2 watt and 3 watt. I prefer to upgrade, and today's parts are smaller in the same rating, so they fit fine.

I also ordered a new dial from Radio Daze. Mine was faded and dirty, but would have been usable if cleaned, but when I went to clean it, using only water and mild dish soap, the lettering washed right off. So if you have an old dirty dial, DON'T TRY TO WASH IT ! You may come to the same grief.

So now I will wait for the arrival of some parts, and rebuild the electrolytic condensers. Rome wasn't built in a day, neither are old radios restored in one.

Mike


Messages In This Thread
RE: my 37-630 restoration - by klondike98 - 06-03-2018, 04:25 PM
RE: my 37-630 restoration - by mikethedruid - 06-12-2018, 10:31 AM
RE: my 37-630 restoration - by mikethedruid - 09-22-2018, 08:07 PM
my 37-630 restoration - by mikethedruid - 06-03-2018, 11:47 AM



Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
under chassis parts locator diagram for 1938 Zenith 9s262
Has anyone gone to the trouble of creating an under chassis parts locator image?  Yes, I can identify components by foll...bobloney — 08:57 PM
Plug Voltages Needed For A 1943 CRV-20130 Power Supply
Try looking at this site the book mark is for a old generator that I was given. David    https://radionerds.com/index.ph...David — 08:36 PM
Plug Voltages Needed For A 1943 CRV-20130 Power Supply
Hello Everyone, I am looking for voltage identification for all the pin positions on the socket of a CRV-20130 power su...Tonym4704 — 08:16 PM
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

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

>