| Author |
Topic: Session 400/Nashville 112 Reverb pan |
Bob Tuttle
From:
Republic, MO 65738
|
Posted 4 Aug 2012 2:55 pm |
|
| Is the reverb pan from an early Session 400 interchangeable with the pan from the Nashville 112? |
|
|
 |
Stephen Cowell
From:
Round Rock, Texas, USA
|
Posted 4 Aug 2012 3:45 pm
|
|
If the numbers are the same then yes, an exact fit.
Nothing will be blown up by trying the substitution, anyway.
_________________
New FB Page: Lap Steel Licks And Stuff: https://www.facebook.com/groups/195394851800329 |
|
|
|
Ken Fox
From:
Nashville GA USA
|
Posted 5 Aug 2012 5:40 am
|
|
It will work, but it is a two spring. The 3 spring tank is available thru Antique Electronics, if you prefer a new one.
4EB2C1B, two spring tank--Used In Peavey Amps Solid, Sturdy Construction Long (16 ¾") 2 Spring Unit, Medium Decay Input Impedance 600 Ohms, Output Impedance 2250 Ohms
9EB2C1B, three spring tank --- Medium Decay Input Impedance 800 Ohms, Output Impedance 2575 Ohms Mounting: Horizontal Open Side Down Connectors: Input Insulated/Output Grounded |
|
|
|
Bob Tuttle
From:
Republic, MO 65738
|
Posted 6 Aug 2012 11:10 am
|
|
| Thanks Guys. |
|
|
|
Jack Stoner
From:
Kansas City, MO
|
Posted 7 Aug 2012 2:30 am
|
|
| I can't tell any difference between the two and three spring reverbs. I had a Nashville 1000 on loan until a new one came in. The loaner had the two spring reverb and the new one I got had the three spring. Both sounded the same. |
|
|
|
Ken Fox
From:
Nashville GA USA
|
Posted 7 Aug 2012 4:51 am
|
|
| I have experimented with many 2 and 3 spring tanks while buidling the Fox Reverb Unit. I found that the 3 spring tank is a bit deeper in reverb and also tends to color the tone more than its 2 spring counterpart. Notice that Peavey uses a medium delay tank while Fender amps use a 2 spring long delay unit. I am not sure that the op-amp drive and recovery circuit used in the Peavey amps would tolerate the long delay, as these circuits are very fussy about oscillating to start with. Just a bit of a bad connection on the input ground can set the Peavey reverb circuit into oscillation. Some of the circuits I ahve seen ona few N-400 amps would not tolerate the reverb tank being disconnected, that would cause issues as well (not all, just a few amps that I have come across). Peavey used the OPA2604AP in their amp mod kits (not in the modded production amps). I found that that some amps would not even tolerate that as a reverb chip. The older Session 400 did not use opamps and tends to be a more stable reverb circuit. |
|
|
|
