Point to point all hand-wired three knob (dwell / tone / blend) for that chewy jangle that only a spring reverb can do. Sweet walnut case with a classy cane grille, three tubes (6K6, 12AT7, 12AX7) and a 3-spring Accutronics 9AB 3C1B tank. Excellent shape both sonically and cosmetically, this was my recording unit and never left the studio. A great hand-built boutique reverb, $325 shipped / insured CONUS.
Could the tank be disconnected and this used as a way to warm up a signal?
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Hmmmm... I'm not sure but I doubt it. I've had amps in the past with onboard reverb tanks that have failed and it didn't seem to sound any different, other than not having any reverb. Shortest safe answer, no.