Recent content by flapineagle

Still kicking but not to high, stirring up the airways.

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Thanks Robb for your input. Finally got around to checking the power supply. found the pass transistors blown (2n3772) a 20 amp and replaced with (2n3771) a 30 amp. Also noticed when power up that it had no inrush sound, not sure if the bigger transistors did that but she holds steady on a...

what is your handle and location Flappineagle 27.105mhz 473 from NE Alabama

Still haven't pinned down my problem, Does anyone know what the weak points are to cause a failure when the power supply has been turned off and on without no load. Grand kids in the radio room. any suggestions where to check so I don't have to shotgun fix it.

I really didn''t know where to post this thread to get a response so if a moderator would like to move it, feel free to do so. Thanks.

Recently got this non working power supply. Replaced the 2N3773 x 4 transisters and all the electrolitics. Tested with a 12v headlamp and it seemed to work ok. Have not had any equipment connected to it but have turned power on with no load. there was a noise like a surge sound to which I...

Had one given to me that was beat up in an eightteen wheeler and messed over in a truckstop cb shop. Took awhile but now talk on it daily using a 4 amp power supply and a i/2 wave dipole swung down vertical at about 45 feet.

300A blowing fuses I got the big caps and the rectifiers all replaced rechecked all my work and reasembled and turned the power on and was sure relieved that all went well and the power came on and the filiments all lit so stopped there and let the tubes get used to the power for about six...

250 Palomar really a 300A Got home today and the UPS had a package so have my parts for the amp so tomorrow will get busy and install some parts. Will keep posting.

palomar amp Found the rectifiers all tucked under the big caps. Getting things ready to send an order to start work on the amp. If I can find all the parts to rebuild it. Have been practicing on my soldering and wish I had a little better steady hand but all that goes with age so will make...

Palomar blowing fuses I have the amp on the bench and checking the schematic I do not see the rectifier stack on the board with the big caps. any idea where they are? Am sending a few pic of the amp.

Well for me this was my bad as it was late atnite when I posted then as I was thinking back realized that the amp is a 300A which makes no difference with the problem. As I gather from the replies that maybe my problem lies with the big caps and the rectifier board. I sure would like to get...

Have owned this amp for more than 15 yrs. but hasnot been inline for at least 10 yrs, lost interest but resently got the amp out opened the case and cleaned out the dust from sitting on the bench. Decided to just turn the power on and let the filiments warm up for a while. Plugged it up and...