tag:blogger.com,1999:blog-7590176649168185428.post7724165974245126790..comments2024-03-27T17:14:31.032-04:00Comments on SolderSmoke Daily News: Some Amazing German KnackBill Mearahttp://www.blogger.com/profile/07662500663603350847noreply@blogger.comBlogger3125tag:blogger.com,1999:blog-7590176649168185428.post-16673440830324576652012-03-13T15:35:51.181-04:002012-03-13T15:35:51.181-04:00The contest had three participants. One used two h...The contest had three participants. One used two head-positioning motors from 5 1/4" floppy drives to generate the power. It only got 2nd price because of the chirp. The winner used a 3,58 MHz color-carrier crystal. The key to T9 was a shunt regulator for the oscillator and *no* filtering capacitor. This design even had a side-tone generator!<br /><br />vy 73,<br />Alexander, DL4NOAnonymousnoreply@blogger.comtag:blogger.com,1999:blog-7590176649168185428.post-30263938213777079972012-01-27T19:04:14.861-05:002012-01-27T19:04:14.861-05:00Oh, man. A key-powered rig! That is right up Mic...Oh, man. A key-powered rig! That is right up Michael Rainey's alley!<br /><br />Who would ever have thought that "QLF" would be 'green', HA!<br /><br />73.......Steve Smith WB6TNL<br />"Snort Rosin"Steve "Snort Rosin" Smith WB6TNLhttps://www.blogger.com/profile/01570621886789949035noreply@blogger.comtag:blogger.com,1999:blog-7590176649168185428.post-15958295545239590332012-01-27T11:48:23.239-05:002012-01-27T11:48:23.239-05:00Here is a key powered cw transmitter in action.
ht...Here is a key powered cw transmitter in action.<br />https://sites.google.com/site/oh6dccw/qrp-transmitter-powered-by-a-cw-keyshttps://www.blogger.com/profile/01096364000437046776noreply@blogger.com