Please --- Just one complete amp

Overdrive Special, Steel String Singer, Dumbleland, Odyssey, Winterland, etc. -
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Bob-I
Posts: 3791
Joined: Thu Feb 02, 2006 10:06 pm
Location: Hillsborough NJ

Re: Please --- Just one complete amp

Post by Bob-I »

smashguitars wrote:200V for ALL pre plates?
Yes, V1a, V1b, V2a, and V2b. The PI is quite a bit higher, output tubes about 430V. It may take some fiddling with the dropping string.

Also, Dumble used an input with an FET driver, most likely for cleaner type sounds. The load that puts on the power supply is about 15K. Dogears likes to use a load resistor at the end of the PS rail, 15K 2watt to simulate this load. This will also adjust the voltages.
keithrick
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Joined: Wed Mar 22, 2006 10:13 pm
Location: In front of my computer

Re: Please --- Just one complete amp

Post by keithrick »

Bob-I wrote:
smashguitars wrote:200V for ALL pre plates?
also, Dumble used an input with an FET driver, most likely for cleaner type sounds. The load that puts on the power supply is about 15K. Dogears likes to use a load resistor at the end of the PS rail, 15K 2watt to simulate this load. This will also adjust the voltages.
I think you mean 150K :?: :wink:
dogears
Posts: 1902
Joined: Wed Feb 01, 2006 1:29 pm

Re: Please --- Just one complete amp

Post by dogears »

Yep... 150k
keithrick wrote:
Bob-I wrote:
smashguitars wrote:200V for ALL pre plates?
also, Dumble used an input with an FET driver, most likely for cleaner type sounds. The load that puts on the power supply is about 15K. Dogears likes to use a load resistor at the end of the PS rail, 15K 2watt to simulate this load. This will also adjust the voltages.
I think you mean 150K :?: :wink:
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Bob-I
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Location: Hillsborough NJ

Re: Please --- Just one complete amp

Post by Bob-I »

keithrick wrote:
Bob-I wrote:
smashguitars wrote:200V for ALL pre plates?
also, Dumble used an input with an FET driver, most likely for cleaner type sounds. The load that puts on the power supply is about 15K. Dogears likes to use a load resistor at the end of the PS rail, 15K 2watt to simulate this load. This will also adjust the voltages.
I think you mean 150K :?: :wink:
:oops: Yep 150K...
NitroLiq
Posts: 62
Joined: Mon Mar 13, 2006 6:13 pm
Location: NYC

Re: Please --- Just one complete amp

Post by NitroLiq »

Someone mentioned earlier that alot of it comes from the player, which is true. Bob is a great player and sounds good on any amp I've heard him play on. I've played through his "crumble" and ODS with his guitar and trust me, it fits his way of playing much more than mine, though the ODS is more forgiving, tonewise, especially if ya got clam hands. :lol: If I were going the Dumble route, that's personally the layout I'd start with but it's pretty complex (not that that's ever stopped me from getting in over my head, before). The real reason is I just don't know if I could afford all those pots!
'67_Plexi
Posts: 309
Joined: Wed Apr 19, 2006 3:30 am
Location: Haverhill, MA

Re: Please --- Just one complete amp

Post by '67_Plexi »

No, the PI plates are typically around 270-300V depending on the iron etc.
Shoot for 200V on V2 and 200-215V on V2.
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