Hi all!
I have a 1973 Sunn 190l that limped its way up on my work bench that has no reverb pan.
It uses a 12AU7 transformer driven pan .
Anyone know if it uses a 8 ohm input pan like the common Fender one, I am inclined to think so?
Sunn 190
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Stevem
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Sunn 190
When I die, I want to go like my Grandfather did, peacefully in his sleep.
Not screaming like the passengers in his car!
Cutting out a man's tongue does not mean he’s a liar, but it does show that you fear the truth he might speak about you!
Not screaming like the passengers in his car!
Cutting out a man's tongue does not mean he’s a liar, but it does show that you fear the truth he might speak about you!
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pompeiisneaks
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Re: Sunn 190
Looking at this schematic found on fender's site:
https://support.fender.com/hc/en-us/art ... Schematics
If it's the 190L Sentura II Scepter Solarus 100S (that's one huge ass name)
Then that schematic shows for me on the second page, that the primary impedance of the reverb transformer is 10kZ and secondary is 3.5Z so a 4 ohm reverb pan seems to fit the bill? BUT they also seem to have a 10k parallel resistor around that primary side, not sure how that might impact it, or if it does?
~Phil
https://support.fender.com/hc/en-us/art ... Schematics
If it's the 190L Sentura II Scepter Solarus 100S (that's one huge ass name)
Then that schematic shows for me on the second page, that the primary impedance of the reverb transformer is 10kZ and secondary is 3.5Z so a 4 ohm reverb pan seems to fit the bill? BUT they also seem to have a 10k parallel resistor around that primary side, not sure how that might impact it, or if it does?
~Phil
tUber Nerd!
Re: Sunn 190
The original tank is a Gibbs type 4F but the Accutronics 4AB3C1A (horizontal/open side up) works well. You can use the standard Fender 4AB3C1B (horizontal/open side down) but the springs may sag and rattle. Notice the tank is tube/transformer driven but recovery is a transistor.
Phil, it's not one name. That schematic covers five amps... same electronics but different speaker configurations.If it's the 190L Sentura II Scepter Solarus 100S (that's one huge ass name)
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pompeiisneaks
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Re: Sunn 190
Oh ok that makes more sense, I was like who names an amp something like that HAHAHsluckey wrote: ↑Wed Nov 25, 2020 6:21 pm The original tank is a Gibbs type 4F but the Accutronics 4AB3C1A (horizontal/open side up) works well. You can use the standard Fender 4AB3C1B (horizontal/open side down) but the springs may sag and rattle. Notice the tank is tube/transformer driven but recovery is a transistor.
Phil, it's not one name. That schematic covers five amps... same electronics but different speaker configurations.If it's the 190L Sentura II Scepter Solarus 100S (that's one huge ass name)
~Phil
tUber Nerd!
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thetragichero
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Re: Sunn 190
i used this in the sceptre that came without a reverb tank and it worked a peach
Reverb Tank - Accutronics, 4AB3C1A, Long Decay, 2-Spring https://reverb.com/item/27734607-reverb ... t=27734607
Reverb Tank - Accutronics, 4AB3C1A, Long Decay, 2-Spring https://reverb.com/item/27734607-reverb ... t=27734607
PRR wrote: Plotting loadlines is only for the truly desperate, or terminally bored.
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Stevem
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Re: Sunn 190
Thanks everyone!
When I die, I want to go like my Grandfather did, peacefully in his sleep.
Not screaming like the passengers in his car!
Cutting out a man's tongue does not mean he’s a liar, but it does show that you fear the truth he might speak about you!
Not screaming like the passengers in his car!
Cutting out a man's tongue does not mean he’s a liar, but it does show that you fear the truth he might speak about you!