January 15, 2015 12:55AM
With letters I'm unsure of, in webmail I right click and save the mail as text, .txt, and then read that in something like Notepad, where nothing can execute.

Jack Jones' mailing is legit, it seems to be just a pirate name, and the site is real, and it's a nice little site. I wrote back and suggested that some of the valves he's using in the transmitter might be harder to find for USA builders, but I like the straightforward circuits and how he built them.

I've worked with that hybrid style of transmitter, with tube finals but with a solid state modulator. It can give better sound over push-pull tubes because it has only the modulation transformer, and can benefit from transistor amps' tight negative feedback for a flatter response.

I also noted that he's used an audio bandpass filter in his higher power rigs, which it seems American stations rarely use. It's a fairly strong filter too.

Boomer
Subject Author Views Posted

QRP website

jtart 1426 January 14, 2015 02:50PM

Re: QRP website

Pat Murphy 1266 January 14, 2015 03:12PM

Re: QRP website

BramStoker 1083 January 14, 2015 05:25PM

Re: QRP website

Radio Animal 1110 January 15, 2015 12:55AM

Re: QRP website

Pat Murphy 1206 January 15, 2015 08:04AM

Re: QRP website Puts me to shame.

ThaDood 1128 January 15, 2015 10:00PM

Re: QRP website Puts me to shame.

Radio Animal 1091 January 16, 2015 08:17PM

Re: QRP website Puts me to shame.

Pat Murphy 1255 January 21, 2015 04:23PM

Re: QRP website Puts me to shame.

ThaDood 1067 January 21, 2015 10:18PM

Re: QRP website Puts me to shame.

Radio Animal 1025 February 14, 2015 11:06AM

Re: QRP website Puts me to shame.

Radio Animal 1081 February 14, 2015 10:58AM



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