New - M.O.P.A.
Master Oscillator Power Amplifier
1930's to 1950's Equipment Replica
with Updated Advanced Technology
The M.O.P.A. Amplifier (Master Oscillator Power Amplifier) provides a variable 1.1 MHz to 1.9 MHz frequency oscillation with low frequency pulsation from the GB4000 function generator. Is is a 1930-1950 M.O.P.A. replica. When connected to the GB4000 it is capable of outputting 8 frequencies simultaneously.
The M.O.P.A. Master Oscillator Power Amplifier is capable of the following:
- Modern solid state equipment uses lower voltage and high current output, but the M.O.P.A. is a high voltage low current output. This is the same method used in the 1930-1950 equipment
- Its sine wave oscillator frequency range covers 1.1 MHz to 1.9 MHz using a variable tuning capacitor
- Average power is 50 watts. Peak power when gated or modulated is 250 watts
- Can output frequencies through a metal or plasma tube antenna
- Amplifier output is analog using the original vacuum tube amplification
- Allows input of GB4000 audio frequencies up to 40,000 hertz
- Allows any frequency from 1.1 MHz to 1.9 MHz to be used as a stand alone frequency or as a carrier wave for square wave audio frequencies input from the GB-4000
- Any frequency from 1.1 MHz to 1.9 MHz can be gated or pulsed using the GB-4000
- Connects to the GB-4000 through regular banana jacks or a BNC connection
We recommend the purchase of an Elenco F-2800 Frequency Counter to properly read your
M.O.P.A. Frequency Amplifier. Since the M.O.P.A. Oscillator/Amplifier uses an old style variable capacitor it is necessary to have a frequency counter so you can set the instrument to what ever frequency you wish to use from 1.1 MHz to 1.9 MHz.
Please note: Frequency counter not supplied with the purchase of the M.O.P.A. Amplifier.
It can be purchased from All Spectrum Electronics 1-877-899-7400 for around $99.00
The M.O.P.A. Vacuum Tube Oscillator/Amplifier is a custom order device made to order. Once we receive your signed order/agreement, we will start building your replica M.O.P.A. Amplifier and ship the completed unit in approximately 1 to 3 weeks. All units are built to order and you must sign an order/agreement which waives our liability for any potential FCC or AM radio interference issues.
Download the MOPA Agreement HERE. Gas Tube NOT INCLUDED. Upon receipt of your order we can supply you with several sources for tubes which typically cost in the $250 to $300 range.
