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RadioDiscussions.com Discussion Boards>RADIO PROS>Engineering>LPB Upgrade Program Amps
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Author Topic: LPB Upgrade Program Amps  (Read 579 times)
BobOnTheJob
Indiana's Circuit Ridin' Radio Engineer
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LPB Upgrade Program Amps
« on: April 28, 2012, 02:14:42 PM »
There are upgraded program cards for a few different legacy consoles. Anyone doing this for LPB's?
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When I started in radio in 1967, most broadcast equipment used tube technology, all recorded music was played from records on a turntable by live DJ's, there was no satellite delivery...and radio was fun.
Kent T
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Re: LPB Upgrade Program Amps
« Reply #1 on: April 28, 2012, 02:33:55 PM »
Not that I know of. Maybe someone will make some. I love the old LPB Signature tanks, the ultimate tough console.
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Kmagrill
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Re: LPB Upgrade Program Amps
« Reply #2 on: April 28, 2012, 07:00:14 PM »
What needs upgrading on them?   I think they used low noise, high slew rate opamps throughout.  The ones I worked on always sounded pretty good.  Possibly just re-capping the boards would be all that's needed.
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BobOnTheJob
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Re: LPB Upgrade Program Amps
« Reply #3 on: April 28, 2012, 08:21:06 PM »
Quote from: Kmagrill on April 28, 2012, 07:00:14 PM
What needs upgrading on them?   I think they used low noise, high slew rate opamps throughout.  The ones I worked on always sounded pretty good.  Possibly just re-capping the boards would be all that's needed.
I was thinking in terms of getting the transformers out of the circuit. But it's true...good sounding console as it sits.
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When I started in radio in 1967, most broadcast equipment used tube technology, all recorded music was played from records on a turntable by live DJ's, there was no satellite delivery...and radio was fun.
Chuck
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Re: LPB Upgrade Program Amps
« Reply #4 on: April 28, 2012, 09:36:36 PM »
Transformers are your friends. That's what made these consoles so great...
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Kent T
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Re: LPB Upgrade Program Amps
« Reply #5 on: April 29, 2012, 03:20:05 PM »
I'd just do a good recapping and general overhaul. Meaning replaced burned out lights and other little things. The LPB boards as a rule sound very good.
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WNTIRadio
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Re: LPB Upgrade Program Amps
« Reply #6 on: April 29, 2012, 09:58:03 PM »
Recap it, and rechip it by replacing all the 5532's and 5534's with new ones.  Pretty sure everything is socketed on those boards.  Been a little while since I've been in one.

They are great simple consoles.  As long as you don't need a few mix minuses, they are easy to use, sound pretty good and stand up to the harshest abuse.
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NS Radio Engineering, Inc.
Serving NJ, NY and New England
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