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loosecannon i dont have a low pass filter. im in the process of building one. i bought some doorknob caps last week and i have a coil turned but have not had time to put it together. it may not work but i like to experiment. anyway i shockwave i would love to go ahead and fix this one. i can...

DUDE!!!!!! shockwave you are the man!!! i cant @#%$^ believe it. the reflected is flat as a pancake with a tube amp. 0 watts reflected. checked with a different swr meter and it comes up about a needle width 1.1.1 maybe at most. BEAUTIFUL...... dang i wish i had posted here a month ago. been...

hey swanny dont hit yourself too hard....LOL your mobile antenna is probably higher than my antenna is now. it is on a 8' mast now for testing. BTW any response is better than none my friend. as i said before i had moved the antenna to a different location...but the height was the same. there...

ok i built another antenna......scary huh? anyway, its a 5/8 wave vertical with 3 ground radials, i have tried it with 4 also. i used the tuning ring method for matching. the swr is a perfect 1.0.1 using my mfj analyser, rs=52 xs=1 or 2. when i add power it jumps up over 2. i have tried...

yes that does help. i seen it in the picture and i couldnt tell if it had to be 16 exactly or if it could be off either way. my old mount wasnt bad it was from a cl2 i think, so i used it for now. anyway i have the matching network almost ready. the lower mount is drilled and tapped. the...

thanks alot robert (i looked you up on qrz). i also assume this is what you are talking about drilling and tapping? (location for the brass bolt) so on the pin coming out of the top of the mount in the center, does it not connect to anything? is the overall length of the match 16" or...

thank you for the link, i have it already. it should help, but it dont...........i have 3 versions of the manual and the golden penetrator 500 manual too. none of the 4 give any info on the base insulator. they are already assembled and riveted to the mount before they were shipped. they also...

i know this has been a while since posted. but i have ran across a couple of these im going to rebuild. my first question is the ring terminal from the center of the coax connector attaches to the pin coming from the center of the base insulator mount correct? the pic dont show the inside of the...

hello, i have a kenwood th-78a that has a small problem. the vhf side squelch stays open no matter where the knob is at. the green light stays on and full bars on the meter. there is no sound coming out of the speaker. this is only on the vhf side. i can use the uhf side fine, also can change...

hello rogerbird, i have a hr-2600 with no display. it lights up but no frequency display or meter. i have had it apart checked all connections and they are making contact. it looks as if the main chip has been repalced, maybe a chipswitch, it has uniden uc-1201 on it. i think that is the chip...

ok i guess i was grasping at straws. i realize the brown and yellow are the grounds for the tubes. i went back to the basics and found a diode opened. i replaced it and its working for the time being anyway. gonna let it warm in awhile and see how it does. thanks to all that helped

another thing all the brown and yellow wires are shorted to ground on the bottom of the audio board

ok i unhooked the green wires from the hv transformer. now not shorted to ground, so now the green and the red are unhooked. plugged in and the fuse didnt blow. i could hear the normal transformer humm so i hope the hv transformer is still good. any more ideas now? thanks guys

ok thanks again guys, it doesnt seem to be the cap. i ran out of fuses, till i get to the store. can i check with a continuity tester to ground, that would work correct? i did have a fuse whan i unhooked the lead on the cap that is not connected to the other one (40 uf) it blew the fuse. then i...

ok the resistors are on the top of the board. the half moon is connected to them from underneath. is this the supply line? if so, it still blows fuse. i unhooked it at the board between the can and resistors. thanks for your help so far.

i assume its the tallest large silver cap right in front of the large power supply correct? the manual refers to it as c5. it does have corrosion on one connection on the bottom of it. i will find the power source wire and dissconnect it then try it. it is not showing continuity or shorted to...

first off thanks for the replys. here we go. with the ba board out, still blows fuse. with all tubes removed still blows fuse. i did notice on the small cable inside (rca cable on one end) the end that goes to the top of the crystal channel selector shows shorted with continuity tester. i can...

i bought a tram d201 23 channel. it looks great and worked great with outstanding receive and transmit. i have had it a month or so now. i hooked it up last night and talked on it and got great audio reports as always. anyway i got busy doing paperwork and was just letting it sit there and...

she is up and running 100% full output. great amplifier now. shorted tubes was the problem. replaced the resistor in the power supply, caps looked good. will be ordering a rebuild kit from harboughs soon anyway. shorted tube took out the choke on the bottom of the socket too. (hence the glowing...

thank you for your help, it is much appreciated.