$595

APT Corporation Holman Preamplifier| Tomlinson Holman Design| Vintage Audiophile

$216

KT63 6F6G Marconi Black Coated Glass Amplitrex Tested Qty 1 Match Pair

$800

McIntosh MX 114 Preamplifier

$300

Philips EL34 Top Double Ring Getter Made in Holland Amplitrex Tested Qty 2 Pcs

$6000

Marantz 7C Preamplifier Pre AMP Tube ( 7 C ) ~ Vintage

$36

5U4GB Heitz & Kaufman Black Base made in U.S.A Amplitrex AT1000 Tested #1939001

$118.8

1MQ 6F6 Ken-Rad metal vacuum tube made in U.S.A Amplitrex tested

$118

1MQ 5U4GB TEN NOS NIB O getter made in U.S.A Amplitrex tested

$1400

McIntosh C26 Solid State Preamplifier and Cabinet - Black/Walnut (1974)

$65

5U4GB RCA NOS NIB O getter made in U.S.A Electron Tube Amplitrex tested

$1000

Crown IC-150A Integrated Circuit Stereo Pre-Amp - Used

$500

GE 6CA7-EL34 Double Ring Getter Made in USA Amplitrex Tested Qty 2 Pcs