This thread is an effort to catalog information and pictures of the Guild ThunderStar bass. The pics below are of ThunderCat's amp regenerated; links to originals below; remove the [plug], copy, and they will return larger originals:
Front view:
Back view:
Tube deck:
Chassis view:
This amp is 2X12AX7 preamp, 2X6L6 out, and a tube rectifier type ?? but likely 5AR4 / GZ34 for higher voltages. The rectifier is shown back left center in the tube deck view. Since the large-scale pics show no diodes and the tube connected to the T1 secondary, it can't be mistaken for a voltage regulator. The little vertical doo-hickey with the red wire in the middle of the tube deck view (where the 6GF7 lives in later models) is a high-wattage, power-dropping resistor postioned there presumably to dissipate heat. For purposes of comparison, note the relatively small number of punched, but unused, holes in the tube deck view.
eBay ThunderStar : Link to eBay TStar as of this post: Click here
Tube deck view A:
Tube deck view B:
Chassis view:
Notes:
Lots of punched/unused holes; look to be filled with factory plastic plugs,
Rectifier tube gone; big power resistor moved next to chassis hole for rectifier tube,
White wire 'spaghetti' looping around the output tubes :shock: :shock:
This is a project amp, seller sez so, and priced accordingly; shown here for chassis and other points of interest. In the auction Q&A, seller sez he thought someone (not him, of course) had been trying to wire in a solid state rectifier of some kind; original pics not large enough to see details but can't think of a reason for all those jumpers / spaghetti....
cj
Links to ThunderCat's pics;
Front view:
Back view:
Tube deck:
Chassis view:
This amp is 2X12AX7 preamp, 2X6L6 out, and a tube rectifier type ?? but likely 5AR4 / GZ34 for higher voltages. The rectifier is shown back left center in the tube deck view. Since the large-scale pics show no diodes and the tube connected to the T1 secondary, it can't be mistaken for a voltage regulator. The little vertical doo-hickey with the red wire in the middle of the tube deck view (where the 6GF7 lives in later models) is a high-wattage, power-dropping resistor postioned there presumably to dissipate heat. For purposes of comparison, note the relatively small number of punched, but unused, holes in the tube deck view.
eBay ThunderStar : Link to eBay TStar as of this post: Click here
Tube deck view A:
Tube deck view B:
Chassis view:
Notes:
Lots of punched/unused holes; look to be filled with factory plastic plugs,
Rectifier tube gone; big power resistor moved next to chassis hole for rectifier tube,
White wire 'spaghetti' looping around the output tubes :shock: :shock:
This is a project amp, seller sez so, and priced accordingly; shown here for chassis and other points of interest. In the auction Q&A, seller sez he thought someone (not him, of course) had been trying to wire in a solid state rectifier of some kind; original pics not large enough to see details but can't think of a reason for all those jumpers / spaghetti....
cj
Links to ThunderCat's pics;