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Model 1 

DOCUMENTATION

1. Electrical schematics (JPEG, 200kB)

2. Printed Circuit Board, component layout and dimensions (in mils - 1mil=0.001" PDF, 70kB)

3. M-1 User's Manual - M1 (PDF, 350kB)

4. Output transformer requirements:

   4.1. Basic Configuration: 5k primary impedance, secondary impedance to match your speakers, 

           40mA min primary current rating, 3W minimum power,

   4.2. Full Pack: 2.5k primary impedance, secondary impedance to match your speakers,

          80mA primary current rating, 6W minimum power.

Our transformer part number 250-0001 is designed to work with the Basic configuration of the Model 1 Amplifier. You can use this transformer with the Full pack as well and you will notice slight improvement in the bass region, with 10-15% increase in the output power. However, for the maximum power with the Full pack configuration, a transformer with 2.5k primary impedance is required.

5. Power supply requirements:

   5.1. Basic Configuration: Plate: 200 - 250V, 80mA min, Filament: 32V/0.3A (can be reconfigured for 16V/0.6A)

   5.2. Full Pack: Plate 200-250V, 160mA min, Filament: 32V/0.6A (can be reconfigured for 16V/1.2A, 64V/0.3A)

6. Power supply PS-1    

    6.1. Printed Circuit Board, component layout and dimensions (in mils - 1mil=0.001" PDF, 23kB)

    6.2. PS-1 User's Manual (contains detailed description, schematics, connections and part list) (PDF. 189kB)

7. Power transformer 250-0002 connections (Word doc. 20kB)

 

 

 

 

 

 

 

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