Technical Specifications
| INPUT MAINS POWER: 115 or 230V, +/-10%, 48-62 Hz |
| PLATE SUPPLY: 50 to 500 VDC, in 1 V steps, 160 mA maximum |
| SCREEN (G2) SUPPLY: 50 TO 500 VDC, in 1 V steps, 20 mA maximum |
| HEATER SUPPLY: 1.0 to 12.6 V, 3.5 amps maximum |
| GRID (G1) SUPPLY: 0 to -99.9 VDC, in 0.1 V steps (-150V in Auto Bias mode) |
| DIODE AND HEATER-TO-CATHODE LEAKAGE TEST: 150 VDC +/- 5%, 1 uA to 1 mA |
| RECTIFIER TEST: 5 V filament/heater (3 amps), nominal 275V RMS Plate V, 120 mA peak current |
| MUTUAL CONDUCTANCE TEST: 0.1 to 50.0 mA/V (100 to 50,000 uMHOs) |
| TUBE ELECTRODE SHORTS: Automatically checked during all tests, test stops if a short is detected |
| GAS TEST: Detects gas ion current effects on Grid G1 (down to .01 uA using TubeTest software) |
| BUILT-IN TUBE SOCKETS: 4-pin (300B), 5-pin (807), 6-pin (6E5), 7 and 9-pin miniature and Octal (3) |
| TUBE LIFE TEST: Using reduced heater/filament voltage (with TubeTest software) |
| USER INTERFACE: Four Direction and One ENTER Keys, Volume control, 4-line x 40 character backlit LCD |
| ENVIROMENTAL: 0 TO +40 C (operating), -20 to +70 C (storage), 95% humidity (non-condensing) max. |
| F/S ACCURACY: Plate, Screen, G1, Heater Voltage: +/- 1%, DC Current: +/- 1%, Transconductance: +/- 1.5% |
| PHYSICAL: 14.75″ W x 12.25″ D x 6.75″ H, 18.5 lbs (8.4 kg) net wt. Shipping wt. 23.5 lbs. (10.7 kg) |
| COMPLIANCE: Designed to comply with UL/CSA standards, tested to meet FCC and CE EMC limits |