Randall RG-150 Alpha Hybrid 1972

Randall RG-150 Alpha Hybrid 1972

Unread postby MartyStrat54 » Sun Feb 05, 2012 7:01 am

Here is the oldest amp that I currently have. It is a 1972 Randall RG-150. This amp uses a very rare power tube that was probably one of the last power tubes ever designed before the technology switched to transistors. It is a hybrid amp, solid state pre and tube power. The amp uses a 12AT7 for a phase inverter tube and four 8417 power tubes. Back in the early 70's, designers were getting 200 watts out of four 8417's. This amp tested on the bench at 172 watts at 10 percent distortion. This is what Don Randall was doing after he left Fender.

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Re: Randall RG-150 Alpha Hybrid 1972

Unread postby NewReligion » Sun Feb 05, 2012 7:10 am

Very Interesting. What other names are included in the Post Fender Fraternity besides Don Randall and Randall Smith (Mesa Boogie)? That puppy looks heavy. :shock:

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Re: Randall RG-150 Alpha Hybrid 1972

Unread postby MartyStrat54 » Sun Feb 05, 2012 7:16 am

It is heavy. If I remember it weighs in at 62 pounds.

I'm friends with Gary Sunda. He was the head engineer at Randall back in the early days. Gary actually designed a lot of the Randall line. While he was doing all of this, his wife was running Orange County Speakers. Gary is now over there. I did business with his wife back in the mid to late 80's when I was the service manager for Advanced Audio in Phoenix and I didn't know what her husband did. Small world.
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Re: Randall RG-150 Alpha Hybrid 1972

Unread postby brp » Sun Feb 05, 2012 7:30 am

62 lbs! That FIFTY PERCENT more than a DSL100!

I didn't know Randall had amps this far back. When did the 1st Randalls come out?
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Re: Randall RG-150 Alpha Hybrid 1972

Unread postby Moose Lewis » Sun Feb 05, 2012 3:41 pm

Of all the amps I've gone through over the years - never heard or played one of those. FN heavy!!! Woof!
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Re: Randall RG-150 Alpha Hybrid 1972

Unread postby MartyStrat54 » Mon Feb 06, 2012 5:12 am

Don Randall was involved with Leo Fender from 1946 until 1969. Randall Amplification was started in 1970. My buddy Gary was hired to lead the R and D department. Don was savvy in a lot of things electronic, but he was a salesman, not an amp designer.
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Re: Randall RG-150 Alpha Hybrid 1972

Unread postby thesendingsound » Tue Aug 07, 2012 1:12 am

I just picked this same amp up but as a combo!! its 2x12 and it screams. If you would ever want to sell the head i would be very interested i cant find them anywhere and i think they have amazing sound!! :clapsmile: :character-beavisbutthead:
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Re: Randall RG-150 Alpha Hybrid 1972

Unread postby ClassicGain » Wed Aug 08, 2012 1:31 am

Wow . Cool stuff, Marty. I've never seen anything like that Randall before.
Amps: '95 1987x Rebuild, '87 2550 Jubilee, '97 JCM2000 DSL50, '83 JCM800 2204. Vox AC30CC2.
Cabs: '79 1960b Blackbacks, '86 1960a G12T-75/Century, '82 1960a G12-65, '90s 1960a G12M/G12H 70th, '80s Rebuilt silver V30s.
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