Marconi TF1020A RF Wattmeter/Dummy Load - UK Vintage Radio Repair and Restoration Discussion Forum

David Simpson · 22nd Jul 2010, 5:39 pm

Wondered if anyone has one of of these ? And/or a Handbook/Manual. Looks like a wee thermo-couple at bottom end of resistive load. Glass encapsulated -would like to know it's ref no, or prahaps CV no ? Please.

Regards, David

David Simpson · 22nd Jul 2010, 8:28 pm

Belay that last pipe, as the Navy used to say. Have found a pdf Manual on a New Zealand website. Had already tried BAMA, but no luck.
However, would still like to hear from anyone with additional info on this lightweight RF WM. Would like to obtain a spare thermo-couple, if they are still available.

Regards, David

glowinganode · 23rd Jul 2010, 12:04 am

The T/C may be a standard marconi part as used elsewhere see this post for example. https://www.vintage-radio.net/forum/...407#post347599
Rob.

David Simpson · 23rd Jul 2010, 8:25 am

Thanks Glowanode, looks like the same 25mA T/C - says 10 for sale on ebay.
The downloaded Manual I've obtained is missing the circuit diagram. However, the circuit is so simple.
Regards, David

David Simpson · 25th Jul 2010, 12:06 pm

Spare T/Cpl aquired. Meter tested & WM calibrated. Going to give casing a re-spray. I'm now happy as Larry.
Threrad can be closed, thanks, Moderator. Regards, David

22nd Jul 2010, 5:39 pm	#1
David Simpson Nonode Join Date: Mar 2008 Location: Aberdeen, UK. Posts: 2,858	Marconi TF1020A RF Wattmeter/Dummy Load Wondered if anyone has one of of these ? And/or a Handbook/Manual. Looks like a wee thermo-couple at bottom end of resistive load. Glass encapsulated -would like to know it's ref no, or prahaps CV no ? Please. Regards, David

22nd Jul 2010, 8:28 pm	#2
David Simpson Nonode Join Date: Mar 2008 Location: Aberdeen, UK. Posts: 2,858	Re: Marconi TF1020A RF Wattmeter/Dummy Load Belay that last pipe, as the Navy used to say. Have found a pdf Manual on a New Zealand website. Had already tried BAMA, but no luck. However, would still like to hear from anyone with additional info on this lightweight RF WM. Would like to obtain a spare thermo-couple, if they are still available. Regards, David

23rd Jul 2010, 12:04 am	#3
glowinganode Octode Join Date: Apr 2009 Location: Aylesbury, Buckinghamshire, UK. Posts: 1,522	Re: Marconi TF1020A RF Wattmeter/Dummy Load The T/C may be a standard marconi part as used elsewhere see this post for example. https://www.vintage-radio.net/forum/...407#post347599 Rob. __________________ We have done so much, for so long, with so little, we are now qualified to do anything with nothing.

23rd Jul 2010, 8:25 am	#4
David Simpson Nonode Join Date: Mar 2008 Location: Aberdeen, UK. Posts: 2,858	Re: Marconi TF1020A RF Wattmeter/Dummy Load Thanks Glowanode, looks like the same 25mA T/C - says 10 for sale on ebay. The downloaded Manual I've obtained is missing the circuit diagram. However, the circuit is so simple. Regards, David

25th Jul 2010, 12:06 pm	#5
David Simpson Nonode Join Date: Mar 2008 Location: Aberdeen, UK. Posts: 2,858	Re: Marconi TF1020A RF Wattmeter/Dummy Load Spare T/Cpl aquired. Meter tested & WM calibrated. Going to give casing a re-spray. I'm now happy as Larry. Threrad can be closed, thanks, Moderator. Regards, David