The MOSFET is available and in stock from RS for 67p Rob at this link: http://uk.rs-online.com/web/p/mosfet-tra...s/5429535/
As to the original article, both in Radio Bygones and the BVWS Bulletin, it is protected by copyright and can't be republished in the public domain without consent, but that isn't to say that it may not mysteriously find its way into your inbox from some anonymous source or another
If the occasional copying of BVWS Bulletin articles from past issues onto the forum with acknowledgement of the source is permissible (if only to show non-members what they're missing!), I'll be happy to do so.
Anyone care to comment on the latter point?
Incidentally, though I used two back to back transformers for the HT, there's no reason why a small mains transformer from a scrap radio can't be used. The 6.3V heater winding (rectified) could provide the power for the digital meter, most types of which must not share the same ground as the rest of the circuitry.
Hope that helps.
As to the original article, both in Radio Bygones and the BVWS Bulletin, it is protected by copyright and can't be republished in the public domain without consent, but that isn't to say that it may not mysteriously find its way into your inbox from some anonymous source or another
If the occasional copying of BVWS Bulletin articles from past issues onto the forum with acknowledgement of the source is permissible (if only to show non-members what they're missing!), I'll be happy to do so.
Anyone care to comment on the latter point?
Incidentally, though I used two back to back transformers for the HT, there's no reason why a small mains transformer from a scrap radio can't be used. The 6.3V heater winding (rectified) could provide the power for the digital meter, most types of which must not share the same ground as the rest of the circuitry.
Hope that helps.
Regards, David.
BVWS Member.
G-QRP Club Member 1339.
'I'm in my own little world, but I'm happy, and they know me here'
BVWS Member.
G-QRP Club Member 1339.
'I'm in my own little world, but I'm happy, and they know me here'
