HP 140A CRT & EHT supply PCB FOC. - UK Vintage Radio Repair and Restoration Discussion Forum

Diabolical Artificer · 12th Mar 2024, 2:07 pm

FOC. HP140A CRT, EHT board and other bits. Would make a good basis for a homebrew scope or clock project. Postage estimated at £6, drop me a PM if interested & for postage details, Andy.

PS, I have the mains tfmr too, postage would be a bit more for that & would need sending separately.

Radio Wrangler · 12th Mar 2024, 3:13 pm

It's an electrostatic deflection tube, so all the warnings about shipping damage to scopes apply, in fact more so without all the support the chassis gives.

They can be ruined without even breaking the glass. The accelerations from a bit of a bump bends the deflection plate mounting wires and you don't know about it until you get distorted pictures

David

Diabolical Artificer · 13th Mar 2024, 2:33 pm

Aye, the CRT should be picked up ideally David. Unfortunately they are worthless unless someone needs one to get existing test gear working. In light of that shipping is the only option. I have shipped CRT's in the past without issue, a Tek CRT went to Lithuania. all I can do is pack them the best I can.

These have now found a new home, thread can be closed thanks, Andy.

Radio Wrangler · 13th Mar 2024, 7:40 pm

I know, I have a few of the rectangular CRTs for the 140 analyser frames. I'd mused about making a scope but never got around to it, then a few TEK465s and HP 1740s came along...

David

12th Mar 2024, 2:07 pm	#1
Diabolical Artificer Dekatron Join Date: Jul 2009 Location: Sleaford, Lincs. UK. Posts: 7,674	HP 140A CRT & EHT supply PCB FOC. FOC. HP140A CRT, EHT board and other bits. Would make a good basis for a homebrew scope or clock project. Postage estimated at £6, drop me a PM if interested & for postage details, Andy. PS, I have the mains tfmr too, postage would be a bit more for that & would need sending separately. Attached Thumbnails __________________ Curiosity hasn't killed this cat...so far.

12th Mar 2024, 3:13 pm	#2
Radio Wrangler Moderator Join Date: Mar 2012 Location: Fife, Scotland, UK. Posts: 22,912	Re: HP 140A CRT & EHT supply PCB FOC. It's an electrostatic deflection tube, so all the warnings about shipping damage to scopes apply, in fact more so without all the support the chassis gives. They can be ruined without even breaking the glass. The accelerations from a bit of a bump bends the deflection plate mounting wires and you don't know about it until you get distorted pictures David __________________ Can't afford the volcanic island yet, but the plans for my monorail and the goons' uniforms are done

13th Mar 2024, 2:33 pm	#3
Diabolical Artificer Dekatron Join Date: Jul 2009 Location: Sleaford, Lincs. UK. Posts: 7,674	Re: HP 140A CRT & EHT supply PCB FOC. Aye, the CRT should be picked up ideally David. Unfortunately they are worthless unless someone needs one to get existing test gear working. In light of that shipping is the only option. I have shipped CRT's in the past without issue, a Tek CRT went to Lithuania. all I can do is pack them the best I can. These have now found a new home, thread can be closed thanks, Andy. __________________ Curiosity hasn't killed this cat...so far.

13th Mar 2024, 7:40 pm	#4
Radio Wrangler Moderator Join Date: Mar 2012 Location: Fife, Scotland, UK. Posts: 22,912	Re: HP 140A CRT & EHT supply PCB FOC. I know, I have a few of the rectangular CRTs for the 140 analyser frames. I'd mused about making a scope but never got around to it, then a few TEK465s and HP 1740s came along... David __________________ Can't afford the volcanic island yet, but the plans for my monorail and the goons' uniforms are done