Recent content by Mr.715

So hopefully final posting on the thread here. I pulled the Toshiba Audio IC. Dropped in a replacement tested the PA function and it was crystal clear with no faults. Moved to RX and the receive was restored back to excellent with no issues. Seems breakdown/leakage of the audio IC itself was the...

Possible fault with the Audio IC itself which is causing the distortion on Receive? This is in PA function.

Okay so here we go this is quiet odd. Here are test voltages for IC1 starting from pin 1. 0v 3.1v 1.53v 0v 0.25v 0.31v 0.68v 0v 0v 0v 8.67v 1.81v 1.81v 5.9v These are without a signal injected.

I removed C37 and C39 both tested good on the cap wizard. Replaced anyway. No difference made I think you're correct. I may just do a dive and cap the entire radio. But I would also like to take some voltage tests for the AGC IC as well I think.

Did you mean C37? C39 is a chicklet style cap. 01uF 50v C37 is in the same general area 47uF rated at 10v?

Lowering the Mic gain has zero effect.

I'm in tomorrow I will check this cap as well thanks gentlemen for helping me on here.

I will report to you back on this Friday when I'm at the shop. Yes RF gain when cut back will make the distortion go away. I did not however check to see if the Mic gain would have an effect. I will let you know when I'm back in.

Hello looking for some guidance on this one. The radio has this issue in all modes. It does not matter how far down the signal generator goes the distortion is always there. If you cut back the RF gain it will clear up and return to normal. If the radio is not receiving a signal and you work the...

Absolutely. The only other alteration Id suggest on the 148 chassis is Changing C174 to a 10uF and R194 to a 100ohm. Take care and again thank you for the thread absolutely excellent alteration.

I'm astonished no one has commented on this post. Nomad Excellent write up. I've had a near mint 148NW sitting here for some time. Figured I'd give this one a try and it's a real treat excellent right before doing an alignment service on it. Seems to have about 2.5kc of slide each way. Excellent...

Have we any possible updates on Lou?

This is a real bummer. I hope he's alright as well! Still trying to track down these manuals. I'd really love to have a copy of his Uniden/Cybernet book And the Galaxy 2nd edition as well.

Did you ever get a reply back from Lou?

Jeff though ranger has posted about it. They are not supplying them or selling them. The only person that has distribution rights is Brian over at Truck 73s.