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

Thread Closed

37-620 Tuner Dishwasher Safe?
#11

Thanks to all for all the great suggestions! What a resource this place is! But, like codefox1 said, "Unless it's something else..." And there always is. So anyway I opted to use Deoxit, toothbrush and dremel tool brush and I'm reasonably happy. Then I decided to measure it (gotta use my new cap. meter). 1st and 2nd sections tuned from 16 pf to about 390 pf. But the last section, when tuned below about 75 pf was OK and then it was erratic the rest of the way up - meter would not hold a value and jumped around + or - 20 to 30 pf or more. But the stator and rotor plates looked clean. However, when fully closed it appeared the outer two rotor plates might have been almost touching the stator plates. I know those things are "vented" or "cut" so they can be adjusted - by who and when I have NO idea. But I bent the ones that didnt quite look right ever so slightly and Presto! I got steady reading all the way through rotation. If I hadnt been messing around cleaning it I never would have noticed that. Here's a question tho: All three sections track +or- 2pf up to about 300 pf. After that they can be off from each other up to 5 pf. I dont like bending those plates and I am guessing that the trimmers will fix that at some point (if and when I get that far). Is that too much tracking variance?


Messages In This Thread
37-620 Tuner Dishwasher Safe? - by Vic Gibson - 07-28-2013, 10:33 AM
RE: 37-620 Tuner Dishwasher Safe? - by codefox1 - 07-28-2013, 12:13 PM
RE: 37-620 Tuner Dishwasher Safe? - by Vic Gibson - 07-28-2013, 12:33 PM
RE: 37-620 Tuner Dishwasher Safe? - by GarySP - 07-29-2013, 09:00 PM
RE: 37-620 Tuner Dishwasher Safe? - by morzh - 07-30-2013, 09:06 AM
RE: 37-620 Tuner Dishwasher Safe? - by marty - 07-30-2013, 09:33 AM
RE: 37-620 Tuner Dishwasher Safe? - by BrendaAnnD - 07-30-2013, 10:40 AM
RE: 37-620 Tuner Dishwasher Safe? - by codefox1 - 07-30-2013, 10:55 AM
RE: 37-620 Tuner Dishwasher Safe? - by marty - 07-30-2013, 01:06 PM
RE: 37-620 Tuner Dishwasher Safe? - by Vic Gibson - 07-30-2013, 05:22 PM
RE: 37-620 Tuner Dishwasher Safe? - by BrendaAnnD - 07-30-2013, 09:01 PM
RE: 37-620 Tuner Dishwasher Safe? - by Mondial - 07-30-2013, 09:17 PM
RE: 37-620 Tuner Dishwasher Safe? - by codefox1 - 07-30-2013, 09:49 PM
RE: 37-620 Tuner Dishwasher Safe? - by Vic Gibson - 07-31-2013, 02:36 PM
RE: 37-620 Tuner Dishwasher Safe? - by codefox1 - 07-31-2013, 09:23 PM



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 2662 online users. [Complete List]
» 2 Member(s) | 2660 Guest(s)
AvatarAvatar

>