Gould OS3350 Manual Wanted, for loan or purchase please - UK Vintage Radio Repair and Restoration Discussion Forum

Chris55000 · 16th May 2024, 4:48 am

Hi!

I'm trying to research Member "Radio Wrangler" David's suggestion for a V.I.T.S. Generator/Inserter and all the circuits I can locate so far use at least one special/custom, programmed or ASIC device!

Has anybody got a Gould OS3350 Manual they can scan or loan me to scan, or purchase please?

The '3350 has a special selector switch on its front panel for these pairs of lines, so me thinks some of the circuits from the '3350 night be a useful starting–point!

Chris Williams

Chris55000 · 30th May 2024, 5:54 pm

. . .I've just gone through all my big parcels upstairs ready to start moving them into my shed and discovered amongst them, another Gould OS3350 in the flesh, so I've got a legitimate reason for asking if anyone can help now – I must have bought it a few years ago, and then totally forgot I had it, as per usual!

. . .So I could certainly draw out the TV Line Counter bits, the Picture Display bits and the special Line Pairs Trigger Selector Switch bits from the actual Oscilloscope itself, but it's not a task I relish in the least bit!

Chris Williams

beamcurrent · 30th May 2024, 6:46 pm

Hello Chris

I think this was also the GPO "Oscilloscope type 18A" I have two of these, neither work!! but also no book!

I do have a scan for the OS3500 which is what the 18A is based on but none of the clever video bits.

Brian

Chris55000 · 30th May 2024, 8:34 pm

Evening Brian!

. . .That is indeed the model I refer to in my query, but mine is "Gould" branded in their standard front–panel colouring scheme with red and white knob caps rather than the black knob caps and black front panel yours has !

. . .I think (emphasis on the think!) that the Y Amplifiers, Timebases and the normal triggering circuits are based on the OS3000A/OS3300B design, but the TV Line Counter/Trigger Line Pair and Picture Display facilities were the added bits!

Chris Williams

16th May 2024, 4:48 am	#1
Chris55000 Dekatron Join Date: Aug 2007 Location: Walsall Wood, Aldridge, Walsall, UK. Posts: 3,342	Gould OS3350 Manual Wanted, for loan or purchase please Hi! I'm trying to research Member "Radio Wrangler" David's suggestion for a V.I.T.S. Generator/Inserter and all the circuits I can locate so far use at least one special/custom, programmed or ASIC device! Has anybody got a Gould OS3350 Manual they can scan or loan me to scan, or purchase please? The '3350 has a special selector switch on its front panel for these pairs of lines, so me thinks some of the circuits from the '3350 night be a useful starting–point! Chris Williams __________________ It's an enigma, that's what it is! This thing's not fixed because it doesn't want to be fixed!

30th May 2024, 5:54 pm	#2
Chris55000 Dekatron Join Date: Aug 2007 Location: Walsall Wood, Aldridge, Walsall, UK. Posts: 3,342	Re: Gould OS3350 Manual Wanted, for loan or purchase please . . .I've just gone through all my big parcels upstairs ready to start moving them into my shed and discovered amongst them, another Gould OS3350 in the flesh, so I've got a legitimate reason for asking if anyone can help now – I must have bought it a few years ago, and then totally forgot I had it, as per usual! . . .So I could certainly draw out the TV Line Counter bits, the Picture Display bits and the special Line Pairs Trigger Selector Switch bits from the actual Oscilloscope itself, but it's not a task I relish in the least bit! Chris Williams __________________ It's an enigma, that's what it is! This thing's not fixed because it doesn't want to be fixed!

30th May 2024, 6:46 pm	#3
beamcurrent Heptode Join Date: Mar 2008 Location: Camberley, Surrey, UK. Posts: 870	Re: Gould OS3350 Manual Wanted, for loan or purchase please Hello Chris I think this was also the GPO "Oscilloscope type 18A" I have two of these, neither work!! but also no book! I do have a scan for the OS3500 which is what the 18A is based on but none of the clever video bits. Brian Attached Thumbnails __________________ Regards Brian G8GQS BATC, VMARS, BVWS, Broadcast TV Camera Museum & MCR21 restoration

30th May 2024, 8:34 pm	#4
Chris55000 Dekatron Join Date: Aug 2007 Location: Walsall Wood, Aldridge, Walsall, UK. Posts: 3,342	Re: Gould OS3350 Manual Wanted, for loan or purchase please Evening Brian! . . .That is indeed the model I refer to in my query, but mine is "Gould" branded in their standard front–panel colouring scheme with red and white knob caps rather than the black knob caps and black front panel yours has ! . . .I think (emphasis on the think!) that the Y Amplifiers, Timebases and the normal triggering circuits are based on the OS3000A/OS3300B design, but the TV Line Counter/Trigger Line Pair and Picture Display facilities were the added bits! Chris Williams __________________ It's an enigma, that's what it is! This thing's not fixed because it doesn't want to be fixed!