Here is a compact but powerful 2-band CW transceiver kit that uses no tiny pushbuttons, and without those seemingly endless and hard-to-remember back menus. There is a knob or a switch for every function!
- Size 5 ½ X 3 ¼ X 1 ½ less protrusions, weight 10.6 Oz
- Full band coverage of 40 and 20 meters
- About 10 watts output with a 14 volt power supply
- 5 Watts minimum output with a 10 volt supply
- 4 Watts output with an 9 volt supply
- Optimized for operation from 3 series-connected 18650 Lithium cells
- RIT tunes + and – 5KHz
- Blue OLED display reads frequency to 10 Hz and RIT offset
- Built in Iambic keyer is adjustable 5 to 35 WPM with front panel control
- Separate jacks for straight key and paddles; Always ready for SKCC contacts
- Operates on 9 to 14 volts, < 90ma receive, about 1 Amp Xmitt at 10 volts
- Selectable tuning resolution steps of 10, 100, and 1000Hz
- Low battery indicator with internal adjustment 9 to 12 volts
- Front panel adjustable RF gain control
- Front panel TX power control; Adjustable from 0 to 10 watts (@14V)
- Rugged TO-220 FET RF amp can deliver 5 Watts key down for 5 minutes
- Signal quality blue LED, RIT warning orange LED, Low battery red LED
- More than enough audio to fill any room with an external speaker
- Excellent receiver sensitivity with MDS of -132dBm (0.06 microvolt)
- Very effective receive AGC prevents ear damage with strong signals
- Transmitter harmonics and spurs -58dB, meets FCC specs
- CW sidetone is the actual transmitter signal as heard by receiver
- Match the received signal tone to the sidetone for perfect zero beating
- Sharp IF filter; Better than 300 Hz at the -6dB point, plus 700 Hz audio filter
- Over 200 machine placed SMT parts, and about 55 user installed parts
- All critical circuits are factory pre-aligned and calibrated
- No endless “back menus”; There is a control or switch for every function
- Options include pre-wound toroid coils, precision optical tuning encoder, and complete factory assembly
Pricing Information 5/24/2021
| TR-25 Kit | $250.00 |
| Factory Wired and Tested | Add $60.00 |
| Pre-wound and prepared Toroids | Add $18.00 |
| Precision optical encoder | Add $30.00 |
Resources:
- TR-25 Lower Board Assembly Procedure
- TR-25 Upper Board Assembly Procedure
- TR-25 Operating Instructions
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