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Alpha 78 PA / 76 PA/ 374A Ammeter & RF Kilovolt Meter Set Brand New Old stock

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MPN:
78 PA
Condition:
New
Shipping:
$18.00 (Fixed Shipping Cost)
  • New Old Stock (NOS) pair of original ammeter and RF KV (plate voltage) meters for the Alpha 78PA HF linear amplifier. Excellent cosmetic and working condition, perfect drop-in replacements. Restore your classic Alpha 78 to factory appearance and performance. Rare genuine parts from Nationwide Radio & Eq Sales LLC.
  • New Old Stock (NOS) pair of original ammeter and RF KV (plate voltage) meters for the Alpha 78PA HF linear amplifier. Excellent cosmetic and working condition, perfect drop-in replacements. Restore your classic Alpha 78 to factory appearance and performance. Rare genuine parts from Nationwide Radio & Eq Sales LLC.
  • New Old Stock (NOS) pair of original ammeter and RF KV (plate voltage) meters for the Alpha 78PA HF linear amplifier. Excellent cosmetic and working condition, perfect drop-in replacements. Restore your classic Alpha 78 to factory appearance and performance. Rare genuine parts from Nationwide Radio & Eq Sales LLC.
  • Alpha 78 PA / 76 PA/ 374A Ammeter & RF Kilovolt Meter Set Brand New Old stock
$249.99
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Description

Alpha 78 PA / 76 PA/ 374A Ammeter & RF Kilovolt Meter Set Brand New Old stock

The Alpha 78PA (part of the ETO/Alpha 78 series) HF linear amplifier uses a pair of front-panel meters for monitoring key parameters. These are typically:
  • Ammeter (Plate Current / Ip meter): Measures anode/plate current, usually scaled 0–1 A or similar.
  • RF Kilovolt (KV) Meter (or Plate Voltage / Multimeter): Often a dual-function or switched meter that displays high voltage (HV) in kilovolts and sometimes RF output or other parameters.
These are analog panel meters mounted on the front panel, critical for safe operation of the amplifier (which uses a pair or trio of high-power tubes like the 8874/3CX400A7 family and runs at high plate voltages ~2.5–3+ kV).
 
New Old Stock (NOS) meters are rare and highly desirable for restorers, as original meters can fade, stick, or fail over decades.  NOS originals from the correct era match perfectly in appearance, calibration, and fit.
  • Compatibility: Alpha 78PA (also fits 78, 76A, 374A series)
  • Meters: Ammeter (plate current) + RF KV / High Voltage meter
  • Condition: New Old Stock (NOS) – never installed, pristine
  • Includes: Both meters (add any hardware, brackets, or documentation you have)
  • Applications: Direct replacement for faded or damaged factory meters in the Alpha 78 series HF amplifiers
  • Features: Accurate calibration, original scales and appearance for authentic restoration
These rare NOS meters are increasingly hard to find and will make your Alpha 78 look and perform like new again. Ideal for serious restorers and collectors of vintage ETO/Alpha equipment!
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