WA3RNC TR-25 CW Transceiver Kit

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

Resources:

• TR-25 Lower Board Assembly Procedure
• TR-25 Upper Board Assembly Procedure
• TR-25 Operating Instructions

Ordering of the TR-25 transceiver has been temporarily suspended due to a delivery issue of critical parts. This suspension could last for a few ays, or up to a week. Keep checking back for availability…

WA3RNC TR-45L QRP Transceiver 

Coming soon. Click here for details.