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Hello everyone, I have a lafayette SSB-140 base station. The chassis is a PTBM058COX which is also similar to PTBM048. I just got through an alignment with this thing, all went well, except for the fact that when I hook this thing up directly to my antenna, it gives me a carrier on sideband...

Hello guys, I acquired a Cobra 29 early 23 channel version. The receiver is sounding weird, sounds raspy and this problem goes away when I try to align the IF stage. Transmit works nicely. I'm hoping to find proper alignment information for this radio. I found the schematic and you can tell...

Hey guys, I got a weird problem with one of my Cobra 148s. Whenever I hook up the antenna ground the channel indicator goes off as if something is shorting. I'm gonna check it out when I get home but in the meanwhile I'd like to hear your ideas as to what may be wrong.

Hey guys, I just aquired this old mobile tube amp. It's a PAL200MDX. Unfortunately I think in my excitement I ended up killing it. I seem to have killed the two transistors that drive the transformer. They are unmarked but the schematic says they are PE250 AKA EF250. They are stud style...

Hey everyone I'm trying to modify a new radio. It's a Midland 77-883 AM only radio. PCB is marked as PC-152AC. It has an 858 PLL which I was really looking forward to modding until I ran into a few issues. Perhaps they're not really issues as much as confusion on my part. Here is the...

Hello everyone, This is my first post! Thanks for letting me join your forum! I was about to modify a Cobra 148GTL with the 6 position rotary switch mod (my favorite mod) for extra frequencies, I had stop because it turns out that the radio has an RCI8719 PLL chip instead of the original...