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SPE Expert Fully Automatic Amplifiers In Stock at MTC Main Trading Company
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Ad Detail with Enlarged Photo for Listing #1737248

AMPHF - SB-220 SB220 modified with 160 Meters

Works well and has the following updates modifications:
Added padding (200 pF 20KV) capacitor and vacuum relay.
Harbach diode-metering board installed.
Harbach replacement capacitor board with HD caps installed.
Harbach fan motor and blade installed.
Harbach Soft Key Module for the SB220. Can be keyed (PTT) by any transceiver or transmitter; Modern or vintage.
Harbach soft start.
Harbach new circuit breakers
Replaced both door knob capacitors.
Added glitch resistor.
Grids grounded directly.
Wired for 120 volts AC input. Easily changed to 240 VAC.
Schematic with mods included.
Blue LED bulbs in meters.
Standby switch also operates vacuum relay.
Case repainted gray.
Input coils tuned.
Plate choke is from an LK500ZC.
Works great!
Wired for 120 VAC. Easily converted to 240 VAC.
cash only.
$1600
Local Pickup Only


Listing #1737248 by AB2NI
Submitted on 07/24/25
Submitted from ool-ad03d8f4.dyn.optonline.net
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