Hi all, I am about to build the RF deck of an GU-84b based amp. Having all the other parts together and even a rotary switch now on hand I wonder what you guys consider the ideal switch (brand, manuf
Author: Peter Chadwick <g3rzp@g3rzp.wanadoo.co.uk>
Date: Fri, 30 Jun 2006 00:25:21 +0200 (CEST)
Frank asked: The 1p 6 way switch from a WW2 tuning unit (TU5B, TU6, TU7 etc) for the BC191/375 transmitter. Last time I looked, $3 or so from Fair Radio Sales. 6 ways - 160, 80, 40, 30 and 20, 17 and
Sorry Peter.. No high power allowed here in the US on 30 meters. Just 150 watts. 73 Jim W7RY Frank asked: for said amp ?< The 1p 6 way switch from a WW2 tuning unit (TU5B, TU6, TU7 etc) for the BC191
Author: Peter Chadwick <g3rzp@g3rzp.wanadoo.co.uk>
Date: Fri, 30 Jun 2006 09:40:02 +0200 (CEST)
200 W.<< Limits are different elsewhere, so a full power amplifier is allowed. In any case, the original question came from Germany - if I remember correctly, they can have 700 watts or so.. 73 Pete
Not on 30m. We can have only 150W PEP and on other bands 750W PEP. 73 Walter DK1BN _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/ma
We couldn't possibly know the ideal bandswitch anyway based only on mode, frequency, and power. There isn't enough information. 73 Tom _______________________________________________ Amps mailing lis
RADIOSWITCH 80 SERIES, Frank. Hal W4HBM On Thu, 29 Jun 2006 19:20:48 +0200 Frank Goenninger <frgo@mac.com> writes: _______________________________________________ Amps mailing list Amps@contesting.co
Measured voltages breakdown of sample switches: Centralab JV-9000 series single pole contact to rotor 8.5kV contact to contact 6 kV rotor to shaft 7.5kV Progressively shorting Centralab: contact to r
Jim -- To a QRP proponent, 150w is an a indecently high, if nor obscenely high, power level R L MEASURES, AG6K. 805-386-3734 r@somis.org _______________________________________________ Amps mailing l
In Canada, the 30m limit is 1500w. In Mexico it's whatever you can afford. Ike was undoubtedly right about the military-industrial complex. R L MEASURES, AG6K. 805-386-3734 r@somis.org ______________
Good point. As a rule of thumb, the bandswitch needs to have a comfortably higher BDV than that of the Tune-C, and the Tune-C needs to have a BDV slightly higher than the anode's DC supply. The idea
Thanks for the correction, Jim! I thought I had missed a tightening of the regs, or something.... (((73))) Phil, K5PC _______________________________________________ Amps mailing list Amps@contestin
Concerning the calibrated spark gap: Is this consistent to what I've seen in the Henry Plasma Gens? On the 3cx3000a7 RF gens they incorporated two aluminum half spheres with a small air gap between t
Larry, I took the spark gap out of the Henry 27 MHz plasma generator that I converted for 14 MHz mono band operation. Mechanically it was configured to support 'calibration' by means of winding the t
Might ought to mention that Radio Switch is now named Multi Tech industries. Their link is below; http://multi-tech-industries.com/ http://multi-tech-industries.com/rotary_switches.htm Best, Will **
A spark gap is much like a bi-directional transient-suppressor. There is no reason to use spherical conductors. I make the gap screwadjustable so that it can be calibrated with a high-potential teste