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Components and Circuits For discussions about component types, alternatives and availability, circuit configurations and modifications etc. Discussions here should be of a general nature and not about specific sets.

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Old 3rd Feb 2023, 4:55 pm   #61
paulsherwin
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Default Re: Identifying unknown items

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Old 3rd Feb 2023, 5:46 pm   #62
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Default Re: Identifying unknown items

This switch looks as though it could be from some telephony equipment, though I can't think where it would be mounted...?
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Old 3rd Feb 2023, 5:58 pm   #63
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Okay I know what this is - it's marked on it: "Farnell FT1 Sound Sync Indicator" - but what's it supposed to do?

It runs off a PP9, has a 6-pin DIN plug on a flying lead, and phono sockets on the front marked "VAR IN" and "REF IN". What sort of Various Variable might this be? There's a big knob for some sort of amplitude, and on the rear it can be switched to 1 or 2

It appears never to have been opened, not even for fitting a battery; no doubt someone thought it was worth ordering one but when they hit the ON switch nothing happened so it went back into stores. How do you usually synchronise sound and vision?
No idea what it does but there's a brief reference to it and the FT2 and FT3 in the June 1974 Studio Sound.

https://worldradiohistory.com/Archiv...nd-1974-06.pdf

Appears to be some sort of thingie for syncing a sound recorder to a camera?

It's a mystery wrapped in an enigma.
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Old 3rd Feb 2023, 8:41 pm   #64
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Default Re: Identifying unknown items

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Okay I know what this is - it's marked on it: "Farnell FT1 Sound Sync Indicator" - but what's it supposed to do?
No idea what it does but there's a brief reference to it and the FT2 and FT3 in the June 1974 Studio Sound.
Thanks for the link, where I see there is a whole article about Tape and Film Synchronisers on page 48. Interesting to note that it was some kind of joint venture with Tandberg
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Old 3rd Feb 2023, 9:03 pm   #65
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Default Re: Identifying unknown items

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This switch looks as though it could be from some telephony equipment, though I can't think where it would be mounted...?
Looks like the switch we used to have in the office that turned off the outside Telephone Bell and turned on the Ansaphone back in the 70's and 80's.

During office hours there were always at least 4 or 5 in the office or the yard.

All the regional offices had a similar arrangement. In the case of the Avonmouth office the switch was in the corner of the window sill adjacent to the fault controllers desk.

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Old 4th Jul 2023, 10:04 am   #66
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This is a mount for the familiar Colvern 1" WW pot (in this case 500R), and has a screw clamp for the skirt of the knob, though the screw is self-tapping into the Bakelite mount, so cannot have been intended for frequent use. Two of the four mounting holes have spire clips for the self-tapping screws.

A printed sticker on the side is marked 76500 T while the designation 402669-A is moulded on the rear

Anyone recognise this?
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Old 18th Sep 2023, 1:19 pm   #67
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Two bare PCBs which seem to make a pair, marked "FOC"
Seems to take 2 terminal pins/wires and a few components, maybe a speaker crossover network?
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Old 18th Sep 2023, 1:37 pm   #68
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Circuit board B seems to have positions for two transistors.

Could it be a buffer circuit?
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Old 18th Sep 2023, 2:18 pm   #69
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Ah yes, and it's got a '+' terminal
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Old 20th Sep 2023, 12:41 pm   #70
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Default Re: Identifying unknown items

Looks more like FCR than FOC!
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Old 21st Sep 2023, 2:24 pm   #71
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Looks more like FCR than FOC!
Ah, yes, think I was going to offer them FOC
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Old 21st Sep 2023, 5:48 pm   #72
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Quote:
Originally Posted by DrStrangelove View Post
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Okay I know what this is - it's marked on it: "Farnell FT1 Sound Sync Indicator" - but what's it supposed to do?
No idea what it does but there's a brief reference to it and the FT2 and FT3 in the June 1974 Studio Sound.
Thanks for the link, where I see there is a whole article about Tape and Film Synchronisers on page 48. Interesting to note that it was some kind of joint venture with Tandberg
IIRC Farnell was once UK distributor for Tandberg.
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Old 22nd Sep 2023, 10:41 am   #73
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No idea what it does but there's a brief reference to it and the FT2 and FT3 in the June 1974 Studio Sound.
Thanks for the link, where I see there is a whole article about Tape and Film Synchronisers on page 48. Interesting to note that it was some kind of joint venture with Tandberg
IIRC Farnell was once UK distributor for Tandberg.
Indeed they were: that's where I got pinch rollers & drive belt for a TCD300 from.
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