Search found 6 matches

by COBRAMAN148
Tuesday 7th Jul 2009, 18:25
Forum: Wanted !
Topic: Crystal needed
Replies: 1
Views: 5753

Re: Crystal needed

here ya go send me an email to cobraman148@gmail and i will grab your adress and send it to you no charge. 8)
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by COBRAMAN148
Tuesday 7th Jul 2009, 18:22
Forum: CB Radio Modifications
Topic: How to increase mike gain range on RCI-2950 & 148 GTL?
Replies: 2
Views: 6029

Re: How to increase mike gain range on RCI-2950 & 148 GTL?

are you saying the modulation is low on the 2950.
by COBRAMAN148
Tuesday 7th Jul 2009, 18:19
Forum: CB Radio Repair and Troubleshooting
Topic: 148gtl (4pin)
Replies: 42
Views: 54082

Re: 148gtl (4pin)

oh man get an old 148 i have modded a couple of the new 148-d and they lasted for 1 yr. i am sorry but they are crap. it is a parts radio. that is where mine ended up. :banghead:
by COBRAMAN148
Tuesday 7th Jul 2009, 10:56
Forum: CB Radio Repair and Troubleshooting
Topic: COBRA 148 PC 412 ISSUE
Replies: 4
Views: 10109

Re: COBRA 148 PC 412 ISSUE

Ok i figured out what it was it is a ceramic cap a green one on the right side of the radio right by the audio chip. it was a dead short in the cap that caused the d44 to blow. c 235 is the cuprit. i put a new d44 in and changed the c 235 and it fired right up. no more blown fuse. this is a breakthr...
by COBRAMAN148
Tuesday 7th Jul 2009, 10:04
Forum: CB Radio Repair and Troubleshooting
Topic: COBRA 148 PC 412 ISSUE
Replies: 4
Views: 10109

Re: COBRA 148 PC 412 ISSUE

nope try again. thanks for the info but there are no caps with any values that are even close to that. i did replace a large cap by the transformer. it was shorted but it still did not fix the d44 issue. those numbers you gave are 2 small caps by the voltage regulator. thanks alot. anyone else?
by COBRAMAN148
Tuesday 23rd Jun 2009, 11:21
Forum: CB Radio Repair and Troubleshooting
Topic: COBRA 148 PC 412 ISSUE
Replies: 4
Views: 10109

COBRA 148 PC 412 ISSUE

Radio Make and Model: 1978 -1997 COBRA 148 GTL PCB Number: PC 412 PLL Number: MB8719 Test gear available: VM METER HP O SCOPE SIG GEN Symptoms: BLOWN D44 What is working: THE RADIO IS WORKING What has been tried: REPLACE THE DIODE Did it suddenly happen ?: After overvolt or shorted transistor. Anyth...