http://ampgarage.com/forum/viewtopic.ph ... 229#p91229
We also know that #001 to #007 were silverfaceThe first 4 are 100W, so Henry Kaiser has 1 and 4, 3 is lindley's and 2 the one John mayer has now. #5 is the one EJ used to own, and SRV's KTC amp was(is) #7 both are 150W
http://ampgarage.com/forum/viewtopic.ph ... 50#p174498
http://ampgarage.com/forum/viewtopic.ph ... +alligatorI recall the Reverb recover/mixer and recover from the filters as being the same tube in the more modern incarnations. the early one actually mixed at the master via cathoe folowers!
http://ampgarage.com/forum/viewtopic.php?f=4&t=8532I have had 4 s.s.s. in my shop ,they all used feedback in each preamp stage and they had e.q. switchs. The early ones used cathode feedback and the later ones used feed back like the ods.
Later 150W singers, it has only 1 Local feedback loop, the earlier ones like Henry Kaiser and The one John Mayer has are 100W, those amps have inductors and LOTS of feedback loops.
Interesting that both evolution concepts have been incorporated into Hartman design (ODS like LNFB and 1 dry/wet mixer tube)
One thing I haven't seen though is the following
http://ampgarage.com/forum/viewtopic.ph ... im#p209806
Some are 150W and some 300W (300SL). Some are built for bass, some for guitar. Some have filters with 6 steps (300SL e.g.), most 150W Dumblelands I know have filters with 7 steps, but at least one Dumbleland150W I know has filters with 11 steps, and the EF 86 Dumbleland 150W has no filters at all. Some have reverb, some not. Some with FET input, some without. Some have an internal trim pot to adjust the gain and sound of the filter section, some don't have this internal trim pot. And so on...
Has anyone in the forum experimented with this trim idea before the filter?
http://ampgarage.com/forum/viewtopic.ph ... 0&start=15
I am wondering if anyone successfully implemented the filter without the inductor and if there is any info on the 2 tube reverb. Which SSS?
- some with a three tube reverb, some with less tubes for the reverb
- at least one with a tremolo, most without
- some with only 5 preamp tubes, some with 6, some with 7
- some with inductors in the filter stage, some without inductors
- different tone stacks, different numbers of filter steps
- ...