Guild 99-J Amp

capnjuan

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A 99-J is currently listed on here on eBay. The seller says that it was "... designed and made in the Guild factory, not jobbed out ..." ... more of the subject below. At least some of the 99-Js were 6V6s; our member slidincharlie had a 6V6 model however the auction amp runs on 6L6s. Seller says about 30 watts and that would be about right. Except for the power supply, it's the same amp as the 66-J; schematics for both 66-J and 99-J here.

front-8.jpg



Includes 12" speaker ... probably CTS, the one in the amp has an alnico magnet. If the cone isn't torn, it soon will be - best move with these is pull the original, update the speaker, and offer the original either in or with the amp if the amp were to be sold.

back-4.jpg



Alnico speaker magnet closeup and pic of control panel; in about average condition. Includes 3 instrument input jacks and another for a Ronco Mr. Microphone ... Control panel has trem controls and an input jack for the footswitch but no FS in the auction pics. Schematic can also be viewed here along with remarks ID'ing the tone stack as Baxandall-style; a configuration that moderates volume and tone loss.

pic3.jpg



Who Killed Roger Rabbit

On page 14 of The Guild Guitar Book, Mr. Moust quotes Mr. Bob Bromberg, a former Guild employee, as follows: "We also had amps at the time. During the fifties, we had Ampeg punch out chassis and install tube holders. We would then wire chassis ourselves."

In this LTG thread, our member Emperor-TK carefully compares and contrasts the Ampeg Reverberocket R12(R) schematic with the Guild 98RT, a contemporary model to the 99-J. As a practical matter, there are no electronic differences between the two amplifiers. The 98RT and 99J share the same cabinet and chassis geometry, cosmetics, knobs, and other details. Further, the Ampeg Jet and the Guild 66-J are more than just electronically and physically similar.

With all due respect to Mr. Bromberg, the Ampeg Jet and Reverberockets date to the early '60s as ... at least it's believed ... do the 66-J and 98RT ... not the "...fifties...". If the reader chooses, they can read Mr. Bromberg's remarks to include a 'nudge nudge wink wink'. Otherwise, the reader is left to draw their own conclusions about who designed and fabricated the 66-J, 98RT, and 99-J amplifiers.

Edit: fix spelling and capitalization boo-boos.
 

dapmdave

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So, what are those little square cutouts on the back bottom panel? Drains?

Dave :D
 

capnjuan

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dapmdave said:
So, what are those little square cutouts on the back bottom panel? Drains?
Yes; so the bad notes can fall to the bottom of the cabinet and be easily swept out. :wink:

I think there's a little accessory mini-cabinet in the back; where the footswitch would go. What looks like hinges on the top and the little cutouts ... aside from letting the bad notes out ... are little fingerholes to lift the door. The amp doesn't have reverb; there's no reason for that boxy-looking covered area.
 

matsickma

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What looks like square hole is one side of a metal hinge. The panel opens downward and stores the power chord and hardwood "wedge" footswitch for Tremelo.

M
 
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