OM's, For what it's worth, I 'm running a 1965 vintage 30L-1 with Taylor (RF Parts) 572B's in it and have seen no indication of instability on 28 mhz or any other band. There is of course NO differen
Bob, We have one of these amps at our club station at work. If you do not have the manual for it, I can get you copy later this week. Don't know if it goes down to the PN of the blower fans. As for r
OM's, If anyone has the military service manual that Bob is referring to, I would also like to get a copy of same. OUr radio club has inherited this amp and it's well worn linkage is going to need so
I believe that you are referring to "K-Com". They had been available in the past through AES. 73, Dave, K2DP, St. Louis -- Original Message -- From: "Bob Nielsen" <nielsen@oz.net> To: <amps@contestin
Charlie, May I make a suggestion that you find the nearest dumpster and throw this trash in it. Wawasee, Palomar and Galaxy equipment is NOT FCC Type Accepted. These CB Amplifiers are not Type Accept
Bob, I would check for final amp tube. We have 2 of these amps at our club station and have seen the tube go south in just this manner, tripping the breaker first and then comming back to life before
Gentlemen, The SB-230 used a ceramic tube, not the glass 3-500Z. The SB-220 uses a pair of glass 3-500Z's. The SB-200 uses a pair of glass 572B's. The other Heath amps which followed the "green line
OM's, FWIW, the Collins 75A-4 covers 160 mtrs, what else would you ever need for 160 ? 73, Dave -- Original Message -- From: "Fuqua, Bill L" <wlfuqu00@uky.edu> To: "Carl" <km1h@jeremy.mv.com>; "Rob A
Dan, I can sympathize with you. I have a Centurion which I purchased used in very good condition. Had it for a few years and poof went the HV xfmr while the unit was in standby. The amp was approxima
check the bias transistor in the power supply. That will also impact the PTT and has been a recent failure on older Centurions (20 years old, mine failed last spring). 73, Dave ______________________
Hi Tom, Before you tear everything apart, pull the tubes and turn on the amp. If the relay behaves correctly and you have normal signal strength received signals, you most likely have a shorted 811A
Lou, Have you tried RF Parts, SND Tubes(WB0SND) or other internet tube suppliers? Dave, K2DP Sent from my iPhone _______________________________________________ Amps mailing list Amps@contesting.com
Our Alpha 8100 has incurred a failure. Currently have identified that R9 , a 25 ohm, 25 watt ceramic wire wound resistor has overheated and melted some of the ceramic coating. Has anyone seen this fa