[Amps] High Power Amp Parts

[Jerry Booth]

Cleaning out some of my 60 + years collection of STUFF

  Hi Pwr Amp or Tuner Parts 
 
    1 W1GA Custom 3cx3000A7 Chimney new $80.00
    1 ECONCO 3cx3000A7 Tube (Rebuild) unopened new $ 875
    1 ECONCO 3cx3000A7 Tube (Rebuild) used tested 95% $ 500
    2 Henry 3cx3000A7 sockets/arid rings used at 225.00 OBRO
    2 EIMAC 2E27A Tubes New $ Best Reasonable Offer
    1 Jennings Vac Cap Ceramic CVCD 3000pf 5KV tested used $ 375
    1 Jennings Vac Cap Ceramic CVCD 1000pf 5KV tested used $ 250
    1 Jennings Vac Cap Glass UCSL 1200pf tested Used $ 175
    1 Vac Cap Machined Alum UCS Tuner end used $ 60
    2 Jennings RJ1A Vacuum Relays New OBRO $ 125 ea.
    2 Jennings RJ1A Vacuum Relays Tested Used $ 60 ea.
    1 Tohtsu CX-800M 12VDC DPDT UHF Antenna Coaxial Relay SO239 new $125
    1 Large HD Roller Inductor Coil 48 μH used nice $ 300
    1 Roller Inductor Coil E.F. Johnson 226-1-3 25 μH used xclnt $ 200
    1 Henry HV Xfmr 220 vac 5/7KV I Amp CCS tested used $ 375
    1 Dahl HV Xfmr 115/220 ac 4KV at .750 Ma. tested used $ 300
    1 Peter Dahl 3cx3000A7 7.5 VAC/52 Amps Filament Xfmr $150.00
1 RCA 3cx3000A7 7.5 VAC/52 Amps Filament Xfmr $115.00
2 HEC 21052 16 uF 7.5 KVDC Oil Filled Filter Capacitor $200.00 ea.
2 Chicago Condenser 10 uf 5 KVDC Oil Filled Filter Capacitor $60.00 ea.
1 Russian Military 40 uF 5 KVDC Oil Filled Filter Capacitor $75.00
2 Plastic Cap Inc 0.1 uF 8 KVDC Choke Resonator Capacitor $30.00 ea.

Jerry W0ZD



-----Original Message-----
From: Amps <amps-bounces at contesting.com> On Behalf Of k1ttt.dave at gmail.com
Sent: Friday, September 3, 2021 10:32 AM
To: yaesu at contesting.com; amps at contesting.com
Subject: [Amps] ft-2000 vs pgxl

A couple related questions for both Yaesu and amps guys.

 

Just had to send pgxl back for replacement of an ldmos.  They say one
possible cause of ldmos failure is not allowing for at least 20msec between
ptt and rf, which I thought I had set. but maybe not when looking at it in
detail. generating ptt through winkeyer which has settings at either 30 or
50msec from n1mm logger so that 'should' cover modes where n1mm or the
winkeyer generates ptt I hope.  But what about ssb vox?  Is there some
setting I can't find to delay rf there?  Or will that always be longer
because of dsp and af-if-rf chain??

 

The pgxl provides for ptt-in and a ptt-out that isn't asserted until it is
ready for rf, that should add safety to all modes except using ssb vox
unless there is a way to interrupt the vox to ptt internal conversion in the
ft-2000. has anyone found a way to do that??

 

Does anyone make a device to measure ptt to rf delay time?  I know I can do
it with a 2 channel scope using an rf tap. but it would seem like a nice
simple device to take ptt and rf, pass them through samplers and measure the
delay from ptt to the rf envelope start.

 

David Robbins K1TTT
e-mail:  <mailto:k1ttt at arrl.net> mailto:k1ttt at arrl.net
web:  <http://wiki.k1ttt.net/> http://wiki.k1ttt.net AR-Cluster node:
<telnet://k1ttt.net:7373/> telnet://k1ttt.net:7373

 

 

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