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1330 [2009/02/17 15:17] n5na |
1330 [2010/11/25 18:34] n5na |
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| ===== Mods ===== | ===== Mods ===== | ||
| *[[http://www.io.com/~n5fc/tt13xx_mods.htm|N5ESE Mods]] | *[[http://www.io.com/~n5fc/tt13xx_mods.htm|N5ESE Mods]] | ||
| + | |||
| + | ===== Specifications ===== | ||
| + | |||
| + | ==== General ==== | ||
| + | |||
| + | ***Frequency Coverage:** VFO tuning of any 50 kHz segment of CW sub-band. Tuning range is selected during winding of one toroid in the VFO circuit. | ||
| + | ***Frequency Control:** Varactor tuned oscillator with potentiometer control. Temperature compensated LC components stabilize VFO. | ||
| + | ***Power requirement:** 12-14 Vdc, 35 mA receive (no signal present), 80 mA receive (S-9 signal), 800 mA on transmit. | ||
| + | ***Antenna:** 50 ohm unbalanced, SO-239 connector. | ||
| + | ***Construction:** Black texture painted clamshell type steel top and bottom. Aluminum chassis, sub-panel and heatsink. One 3.5" x 5" double-sided circuit board. | ||
| + | ***Board mounted-components:** 216 including 4 IC's, 19 transistors, 13 diodes. | ||
| + | ***Front panel controls:** main tuning, RIT, volume, power on-off toggle switch. | ||
| + | ***Connectors:** front panel 1/4" stero phone jack; rear panel SO-239 for antenna, 3 RCA-style phono jacks for key, dc input, accessory dc output. | ||
| + | ***RIT:** +/- 1.5 kHz. | ||
| + | ***Dimensions:** HWD 2.75" x 6" x 6". Weight 2.25 lbs./1.02 kg. | ||
| + | |||
| + | ==== Receiver ==== | ||
| + | |||
| + | ***Type:** single conversion superhet, JFET mixer | ||
| + | ***Sensitivity:** .25 uv typical for 10 dB S/N | ||
| + | ***Selectivity:** 4 pole crystal ladder filter (1 kHz nominal bandwidth). | ||
| + | ***AGC:** audio derived | ||
| + | ***I-F:** 11 MHz on 80 and 40 meter models, 14.32 MHz on 30 meter model, 6.14 MHz on 20 meter model. | ||
| + | ***Audio:** 300 mW @ 4 ohms. Built-in 4" speaker in top of cabinet. | ||
| + | |||
| + | ==== Transmitter ==== | ||
| + | |||
| + | ***RF Output:** 3 watts, no external adjustment. | ||
| + | ***T/R Switching:** solid state, full break-in. | ||
| + | ***CW Offset and sidetone:** Adjustable 400-1000 Hz sidetone automatically tracks offset frequency. Sinewave sidetone has internal adjustment. | ||
| + | |||
