Has anyone successfully built a multi-band grid driven amplifier using a 4-1000 ? If the control grid were swamped in the 50 to 200 ohm range, and the Screen grid was made the shielding element (assu
On Jan 19, 2005, at 7:11 AM, Steven J Fraasch wrote: Has anyone successfully built a multi-band grid driven amplifier using a 4-1000 ? If the control grid were swamped in the 50 to 200 ohm range, and
R.Measures wrote: A 200w transceiver will drive a 4-1000A in g-g or an 8171 in grid-driven. It will also drive the 8171 in g-g! 73 SM2EKM _______________________________________________ Amps mailing
Rich: SPICE is very useful (or almost as good, linear 2 port models) for predicting behavior in HF as well as at VHF. The components, such as sockets, chokes, suppressors, large caps and inductors ca
Dear Steve, Neutralization of tetrodes provides a better match between the driver and Power Amplifier, and also serves to protect the PA from deleterious oscillations. With the cost of a replacement
On Jan 19, 2005, at 7:51 AM, Jan Erik Holm wrote: R.Measures wrote: A 200w transceiver will drive a 4-1000A in g-g or an 8171 in grid-driven. It will also drive the 8171 in g-g! Yes, to roughly 12% o
On Jan 19, 2005, at 8:05 AM, Steven J Fraasch wrote: Rich: SPICE is very useful (or almost as good, linear 2 port models) for predicting behavior in HF as well as at VHF. The components, such as sock
On Wed, 19 Jan 2005 07:43:09 -0800, R.Measures <r@somis.org> wrote: On Jan 19, 2005, at 7:11 AM, Steven J Fraasch wrote: Has anyone successfully built a multi-band grid driven amplifier using a 4-100
On Jan 19, 2005, at 8:07 AM, Harold B. Mandel wrote: Dear Steve, Neutralization of tetrodes provides a better match between the driver and Power Amplifier, and also serves to protect the PA from dele
R.Measures wrote: On Jan 19, 2005, at 7:51 AM, Jan Erik Holm wrote: R.Measures wrote: A 200w transceiver will drive a 4-1000A in g-g or an 8171 in grid-driven. It will also drive the 8171 in g-g! Yes
Will: There was also a lot of junk designed by large project teams consisting of many people who could afford to "blow up" expensive components. There's really no need to "cut and try" anymore. I'd p
This is interesting! I´m going to play with it a bit myself. Tnx for info on LTspice, I didn´t know about it. 73 SM2EKM -- Steven J Fraasch wrote: Will: There was also a lot of junk desig
On Jan 19, 2005, at 10:58 AM, Jan Erik Holm wrote: R.Measures wrote: On Jan 19, 2005, at 7:51 AM, Jan Erik Holm wrote: R.Measures wrote: A 200w transceiver will drive a 4-1000A in g-g or an 8171 in g
Author: "Dr. William J. Schmidt, II" <bill@wjschmidt.com>
Date: Wed, 19 Jan 2005 20:28:27 -0600
Finish your thunderbolt project and you will know what gain is all about. Sincerely, Dr. William J. Schmidt, II K9HZ Trustee of the North American QRO - Central Division Club - K9ZC "Collector of Edi
Gain in GG depends on plate voltage and drive power. If we use the example below 8171 can give 15 dB gain. That is way more then 12% of full output for the tube. EIMAC states about 16 kW max output i