eBay auction for a cleanish Thunderbird; text sez "EchoJet" although I don't recall seeing that ... uh ... whatever it is. 2X7591, and closer to stock that the Covington Ky model with its do-over speaker config. This model looks like it has the reverb pan-on-chassis not can-in-bottom. Link to eBay Thunderbird
Edit: took the pic out. J
In auction text, seller goes to some effort to impute mojo to the amp: "We think the amp may have been designed/built by Ampeg, because the pc board looks a lot like a 60's Gemini/Reverb Rocket." The Ampeg connection is normally associated w/ the 98RT and 100J and not necessarily this model. As far as anyone has been able to determine, Guild manufactured these amps although who they might have imitated is certainly open to conjecture. And further: "That, and the 7591 output section and very Ampeg-ish tremolo sound points away from Valco origins." This follows the old rule: "If it sounds like Ampeg tremolo, it must be an Ampeg" - yeah right. And just how did Valco get into consideration?
Sales text mis-ID'd the reverb-out tube as '6AN8'; it's 6BM8 ... or maybe he isn't using Mozilla for his browser. No rectifier tube indicated on pic of tube chart so probably solid state rectifier. Amp features dinette-modern styling; stick-'em-on wood-grain shelf paper / banded sides with banal doctor's office upholstery grillcloth. Subject to remarks by John K or matsickma, this amp probably in the +/- 50 pound range; nice looking speakers. In Portland OR. Despite cosmetics, probably a pretty cool amp.
Take Note: The cabinet is made of 1st generation particle board; not MDO or any of the more recent versions of 'manufactured' wood. Exposed to moisture, the particles soften and the glue binder breaks down. As a result, they are more fragile than same-era amps made with conventional plywood. As if shipping risk weren't already a consideration, this bumps that risk up.
cj
Edit: took the pic out. J
In auction text, seller goes to some effort to impute mojo to the amp: "We think the amp may have been designed/built by Ampeg, because the pc board looks a lot like a 60's Gemini/Reverb Rocket." The Ampeg connection is normally associated w/ the 98RT and 100J and not necessarily this model. As far as anyone has been able to determine, Guild manufactured these amps although who they might have imitated is certainly open to conjecture. And further: "That, and the 7591 output section and very Ampeg-ish tremolo sound points away from Valco origins." This follows the old rule: "If it sounds like Ampeg tremolo, it must be an Ampeg" - yeah right. And just how did Valco get into consideration?
Sales text mis-ID'd the reverb-out tube as '6AN8'; it's 6BM8 ... or maybe he isn't using Mozilla for his browser. No rectifier tube indicated on pic of tube chart so probably solid state rectifier. Amp features dinette-modern styling; stick-'em-on wood-grain shelf paper / banded sides with banal doctor's office upholstery grillcloth. Subject to remarks by John K or matsickma, this amp probably in the +/- 50 pound range; nice looking speakers. In Portland OR. Despite cosmetics, probably a pretty cool amp.
Take Note: The cabinet is made of 1st generation particle board; not MDO or any of the more recent versions of 'manufactured' wood. Exposed to moisture, the particles soften and the glue binder breaks down. As a result, they are more fragile than same-era amps made with conventional plywood. As if shipping risk weren't already a consideration, this bumps that risk up.
cj
