Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5

advice needed: restoring 47-1230 - FM & AM now works!!!! :D (uncertain about SW)
#12

I can't seem to find DeOxit locally here in Canada. I have a co-worker that says an electronics store near his place might have some, otherwise I'll order, I might have found canadian supplier that would ship to here.

In the meanwhile, I have purchased another contact cleaner, thinking It'll be a start. It does work wonder on the volume pot.

But I realised the PB/BC/SW/FM switch is a beast on its own!
It is not a single casing with 4 contacts, but rather a mecanism, leading to a rod that includes a series of sets of switches.

from that top knob:
[Image: http://i146.photobucket.com/albums/r253/...0_9255.jpg]

to that shaft:
[Image: http://i146.photobucket.com/albums/r253/...0_9257.jpg]

here's one end inside the chassis:
[Image: http://i146.photobucket.com/albums/r253/...0_9260.jpg]

[Image: http://i146.photobucket.com/albums/r253/...0_9263.jpg]

another end of the chassis:
[Image: http://i146.photobucket.com/albums/r253/...0_9266.jpg]

In essence, there's like 4 sets of switches in there. I fail to see why pushing the knob gets better contact under those conditions. I wonder if it might be related to a wire I changed, leading to a lesser quality connection? I'll have to give it a try, after I change my e-caps. After cleaning and letting evaporate for about an hour, the result wasn't as expected and all is still as it was. "better luck next time"

On a better note, I received my caps!
[Image: http://i146.photobucket.com/albums/r253/...0_9274.jpg]

Overtime aside, I might have time to do that before easter.
So I have 22mF 450V as a replacement for the 20mF & 25mF e-caps.

-Mars


Messages In This Thread
Re: advice needed bringing this 47-1230 to its former glory - by Marsupial - 04-18-2011, 10:58 PM



Users browsing this thread: 19 Guest(s)
[-]
Recent Posts
Philco 46-420 Code 121 Reception issues
Welcome Eric, I agree with Bob and far as the two main electrolytic filter capacitors did you change them yourself or w...radiorich — 11:43 PM
Philco 46-420 Code 121 Reception issues
You mentioned the Philco manual and going through the check points...just to be sure we're on the same page here's the m...klondike98 — 08:13 PM
Philco 42-1008 conversion kit
Interesting. I haven't seen that before.klondike98 — 07:02 PM
12' Philco
Yes I had looked for it on the web as well some time back and could not find it. I was glad to see it turned up in Ron'...klondike98 — 06:59 PM
Shadow Meter Bulb
Now if you had a set with a tuning light then the bulb type is important to the circuit, some sets used those prior to t...Arran — 04:58 PM
Shadow Meter Bulb
Ok. Thanks for the correction.RossH — 03:09 PM
Model 28L
For 28 you will probably need to buy a Hammond 125CSE. Or any of the series of the power you need, with SE suffix. Then ...morzh — 02:09 PM
37-60 revision 6
I am restoring a Philco 37-60 and it shows run 6 they removed the ground from G3 of the 6K7G and put the G3 to -2.5v for...bobbyd1200 — 01:01 PM
Shadow Meter Bulb
Mike is correct on the bulb connection, two separate circuits. I found that by rotating the bulb and sliding it forward ...RodB — 12:19 PM
Hickok AC51 tube tester
Cleaned ann contacts, switches and sockets, works great now.martinj — 11:32 AM

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

>