Pull the other one Walter. I bet you had a couple of 813s on the end! 73, Tom 'OLB In message <[email protected]>, Walter Blanchard <[email protected]> writes Real QR
Just the sort of acknowledgement I expected from this individual. In message <[email protected]>, gii3kev <[email protected]> writes Thanks to all that offered informa
The other method is to use a phase-locked-loop: VCO at output frequency, divided down to the source frequency, phase compared with the source, phase comparator output controls the VCO via a loop filt
Wil Yes, I had the exact same problem a while ago on my TS850SAT, but it quickly cured itself! 73, Tom G3OLB writes Dear group I have problems listening on LF the last weeks. My TS850s is providing m
Hello LF folk, Does anyone out there have a circuit diagram for a Manson EP925 Power Supply (now known as the Palstar PS30)? This is the 3-15V @ 25/30 amp unit and mine has developed an intermittent
Dear LF Group Someone gave me a Christmas present of the excellent 'Low Frequency Experimenter's Handbook' by Peter Dodd G3LDO which is full of technical advice and practical construction articles fo
One thing puzzles me Bill, if you are slinging wires over the tops of trees which are close together, how are you adequately insulating the wire from the branches? My 1100 ft long wire is carefully s
Bill, The spool that I have of the stuff is about 120 ft which is not quite long enough, but it is freely available in sports/angling shops over here. 73, Tom
Dear LFers Just a few more words of advice to the would-be Robin Hoods or Davids (as in vs. Goliath) amongst us. 1) Use a proper lead weight with an eye in it instead of a steel nut. These are obtain
Hello John G4CNN I only heard you briefly last week end when I managed to have a break from pruning trees, but your signal sounded stronger than I remember it. I'm sure there is an obvious answer, bu
Uwe Are you by any chance the Uwe Janssen who I met in Las Vegas last October and previously in Amsterdam? 73, Tom G3OLB see attachment: which of the pics do you interprete as 5Hz- and which as 10Hz-
If anyone is looking for a low cost high current power supply, Mainline (0870 241 0810) have some small SMPSUs rated at 12V / 25 amps for GBP16 or two for GBP30 including VAT. I bought 2 of these and
I reckon the use of those 'MOV's in the Decca is a bit belt-and-braces anyway because both output ports are diode clamped to positive and negative rails. Maybe they are faster than the diodes and pro
Mike Further to my previous message, my full-bridge PA uses 500 volt FETs (STW20NB50) and runs with a supply of 80 volts on load, 100V off load, so you may want to use a slightly lower voltage varist
Mike These are 'varistors' or voltage dependant resistors which are used as transient suppressors. In my 'chinese copy' of the Decca bridge PA, I used a 200 volt, 8 Kilo-amp, 85 Joule device availabl
John G4CNN - I failed twice to send direct e-mails to both .excite and .go. Hello John I have only just read your message . Perhaps I can bring the catapult with me next week and we could give it ano
