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Vintage Test Gear and Workshop Equipment For discussions about vintage test gear and workshop equipment such as coil winders.

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Old 10th Jul 2019, 4:13 pm   #1
David Simpson
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Default Pye Service Workshop Rack

A birthday present (found local on Gumtree)from my youngest son - this beast plus other stuff(AVO7,"Channel" - Burnham on Sea- Attenuator Box ?,Taylor 81A Universal Meter, Evershed Safety OhmMeter 5Q/317).
This rack is 15" wide x 8.5" deep x 28.5" high. Seemingly a shed find from a deceased post-war TV engineer.
Are these racks still usable ?

Regards, David
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Old 10th Jul 2019, 6:21 pm   #2
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Default Re: Pye Service Workshop Rack

Looking at it and guessing it seems to be an audio frequency generator, a rf one (or some sort of wobbulator if it's for TV), current and voltage meters plus various switches to select one or the other. If so I don't see why it should not be usable after a look inside and replacement of any wax caps.
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Old 10th Jul 2019, 6:29 pm   #3
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Default Re: Pye Service Workshop Rack

What's the little thing with the perforated metal cover and the 2 knobs on the front?

"Channel Electronic Industries" in Burnham-on-Sea made Band-III TV converters in the 1950s.
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Old 10th Jul 2019, 6:59 pm   #4
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Default Re: Pye Service Workshop Rack

Band 3 converter ,same as mine plus I have the Pye Service Rack which I need to fire up.

There was a back article on same in the BVWS Bulletin.
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Old 10th Jul 2019, 8:57 pm   #5
David Simpson
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Default Re: Pye Service Workshop Rack

From what I can see, its a multimeter plus an AF Sig Gen & an RF Sig Gen. Socket for an external modulation supply.
David, do you have the manual &/or circuit diagram for yours ?

Regards, David
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Old 10th Jul 2019, 9:28 pm   #6
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Default Re: Pye Service Workshop Rack

A couple of members have one, and would probably be able to help: https://www.vintage-radio.net/forum/...ad.php?t=49098
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Old 12th Jul 2019, 3:02 pm   #7
David Simpson
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Default Re: Pye Service Workshop Rack

Many thanks Bill for the link. Should be getting some documentation soon.
Seemingly others have baulked at delving into this beastie. Guess I'm going to be a glutton for punishment. Thought I could have had a wee rest after repairing & calib. a CT160, but not so.
Also - back to restoring vintage wooden cased t/eq. - the Taylor 81A, but will open a new thread when I can acquire a circuit diagram or manual.

Regards, David
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Old 12th Jul 2019, 3:36 pm   #8
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Default Re: Pye Service Workshop Rack

I may have a couple of pye connectors if you need them.
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Old 16th Jul 2019, 4:34 pm   #9
David Simpson
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Default Re: Pye Service Workshop Rack

Many thanks to Alan Beckett for the Manual copy. I guess these must have been the bee's knees back in 1946, but my oh my - what a weight. I'm going to try & think of a way to support the chassis & front panel, so that I can temporarily remove some of the heavy steel panelling.

Regards, David
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Old 16th Jul 2019, 5:05 pm   #10
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Default Re: Pye Service Workshop Rack

They certainly are heavy, I have the "portable" (well, it has a handle!) signal generator section similar to the one in the service rack & they're one heck of a solidly built bit of kit. I was highly impressed with the quality of mine & even more so when I recommissioned it after many years in a damp shed (replaced a few waxies and fettled the damaged meter, nothing else) only for it to work right off the bat and be superbly accurate! Built well & truly to last a lifetime.
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Old 17th Jul 2019, 3:54 pm   #11
David Simpson
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Default Re: Pye Service Workshop Rack

Well - what a difference in weight. Spent about 1 1/2hrs removing metalwork & the mains T/F. The front panel & one side remain. Dead easy now to get at everything. I've made temp. PSU connections to a loom of eight wires, but hopefully I'll be able to fit an IO Plug & Socket upon reconnecting. A smaller loom of three wires might lend itself to a small Jones Plug & Skt.
The two long black strips down either side of the front panel are in fact solid brass, secured internally by two 4BA bolts each inside. They reveal the main C/S 2BA's which secure the front panel. The T/F is secured by six dome headed 2BA nuts at the bottom of the side plate.
So hopefully, the two other Forum folk with one of these will have a go at delving inside. Really - its just a heap of 2 & 4BA nuts & bolts holding everything together. No big deal.

Regards, David
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Last edited by David Simpson; 17th Jul 2019 at 3:57 pm. Reason: Add'l info
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