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B&W 2500 Keying Problem




 
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Author Topic: B&W 2500 Keying Problem  (Read 627 times)
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KD6VXI
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« on: December 23, 2018, 07:52:00 PM »

Bob,

Saw your post in the for sale section.

Check q1 through q3 and the associated capacitors around that circuit.

I'd also wonder, is it pulling zsac when keyed, and no rf getting thru....  Or more like ground the ptt and it acts like nothing happened.

I own one.....  Great battleship looking amps.  Have bugs, work them out and they work well.  But, not kne schematic will match what is in front of you.....  I got lucky and mine came with a hand drawn schematic from Viewstar that matched what the amp was.... 

--Shane
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K9EID
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« Reply #1 on: December 24, 2018, 07:54:24 PM »

Thank you Shane.   I appreciate that.   Will get into the situation in a few months.   Want to bring it back to it's total life and of course, do it right.   May have to call upon you for your schematic. 

Appreciate your time

Bob Heil, K9EID
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KD6VXI
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« Reply #2 on: December 25, 2018, 12:49:57 AM »

Not a problem.

//Supposedly// mine is the one they fixed a bunch of problems with.  //Supposedly// that means it's the one KM1H did some work on.  The serial number does fit the timeframe, so who knows.

Anything I can help with, other than Millen connectors, please let me know 🤔😁

--Shane
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K9EID
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« Reply #3 on: January 07, 2019, 12:04:00 PM »

Shane

Possible for you to send me a copy of your schematic?  Like to have a perfect schematic before jumping in.

I thank you

Bob Heil
Heil Sound
5800 North Illinois St
Fairview Heights, iL. 62208

K9EID@arrl.net
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KD6VXI
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« Reply #4 on: January 07, 2019, 02:25:14 PM »

Bob,

I'll scan and send tonight.  If I forget, please remind me.  After blasting myself with 6kv three weeks ago, the mind is semi forgetful.

--Shane
KD6VXI
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KD6VXI
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« Reply #5 on: January 08, 2019, 10:13:59 PM »

Bob,

I haven't forgotten.  Have put in 14 hr plus days last two days at work.   Will be scanning and sending soon!

--Shane
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K9EID
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« Reply #6 on: January 14, 2019, 10:25:06 PM »

Hi Shane

looking like I have found some time to get with a friend who has decent workbench and is willing to take on the 2500 project.   If. you have the schematic, I will appreciate that very much.

Best to send it to:
K9EID@arrl.net

Really appreciate that.

I finally got the microphone connector situation all worked out - built it using one of our 'stealth' shells.  Works great and the little MARS is on the air.  so much fun. 

Really appreciate your help.

Bob Heil, K9EID



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