The IC-275 was sold from 1987-1993. There are different versions: the “A” and the “E” with 25w and the “H” and the “D” (sold only in Japan) with 100w. The ‘H’ model is 12-volt only at 20 amps. Receiver goes up to 173 MHz. Pictured is the ‘late’ model 275, the early model had an IF shift where the ‘data level’ pot is on the front panel. I understand that the IF shift was removed as the result of a patent lawsuit.You will not find another 2-meter all mode that can match an IC-275H for transmitter punch and receiver quality. They are very hard to find nowerdays on the market – if you can find one in mint conditions BUY IT ! Price: between 450€ to 500€ you probably will get one. The last I saw at EBAY in September 2011 has been sold for 590€.
IC-275 manuals and mods
English manual inkl. schematics
English service manual
Deutsches Manual als PDF-SCAN – 13MB (dieses PDF ist passwortgeschützt – bitte per Email Passwort erfragen)
IC-275 all mods
IC-275 QST Review 1987
Restoring Passband Tuning
IC-275D to IC-275H Conversion by VK3KBC
reduced power splattering
List of filters for the IC-275
How to realice a TX inhibit at the IC-275
Original display unit for the IC-275H can be found here for 18,47€
TCXO: using a TCXO on a IC-275 is not recommended ! Use that: LINK
Join the new ICOM IC-275 group at GOOGLE !
https://groups.google.com/group/icom-ic-275?hl=en
IC-275 + HEIL headset
If you want to use a HEIL headset with your IC-275 you have to use the ProSetPlus-IC”. The new Heil ProSetElite-IC works super good with the 275 and gives enough NF power to the RIG . With other headsets or computer headsets you need a special inline Nf-preamp like the HEIL “HMP”. ( I sell this preamp for 35€+shipping)
Some history of the ICOM VHF + UHF transceivers
Icom IC-211 VHF LSB,USB,FM,CW Transceiver
The Icom IC-211 2 meter multi-mode transceiver that provides versatile DX or local communications. Supported modes include USB, LSB, FM and CW. Frequency coverage is from 144.0000 – 148.0000 MHz. Power output is adjustable from 0.5 to 10 watts FM, 10 watts SSB and 10 watts CW. The synthesizer step size is 100 Hz or 5 kHz for SSB and 5 kHz for FM. Other refinements include: speech processor, dial lock, all mode squelch, dimmer, RIT, noise blanker, S/Center Tune Meter and VOX. The IC-211 has a built in AC power supply or can be run from 13.8 VDC at 3.3 amps. 241x111x264mm 6.8 kg.
Icom IC-251A VHF LSB,USB,FM,CW Transceiver
The Icom IC-251A 2 meter multi-mode transceiver employs advanced engineering principals. Supported modes include USB, LSB, FM and CW. Frequency coverage is from 143.8000 – 148.1999 MHz. Three memories are available plus band scanning. Power output is adjustable from 1 to 10 watts FM, 10 watts SSB and 10 watts CW. Other refinements include: Two VFOs, all mode squelch, noise blanker S/Center Tune Meter and RIT. The IC-251A has a built in AC power supply or can be run from 13.8 VDC at 3 amps. 241x111x264mm 5 kg.
Icom IC-271H VHF LSB,USB,FM,CW Transceiver
The Icom IC-271H 2 meter transceiver was built with state-of-the-art construction. Supported modes include USB, LSB, FM and CW. Receive is from 144-148 MHz. Enjoy 32 tunable memories storing frequency, mode and other information. Power output is adjustable from 1 to 100 watts. Other refinements include: speech processor, all mode squelch, noise blanker S/Center Tune Meter, RIT, PL encode and lithium memory backup.
Icom IC-475H – 440 MHz LSB,USB,FM,CW Transceiver
The Icom IC-475H 440MHz all-mode transceiver was built with state-of-the-art construction. Supported modes include USB, LSB, FM and CW. Extended receive is from 430-450 MHz. Enjoy 99 tunable memories storing frequency, mode and other information. Plus you get channels P1 and P2 to program a scanning range. There is also a priority call channel. Power output is adjustable from 10 to 75 watts. Other refinements include: speech processor, full and semi-break in, tone control, noise blanker. Included HM-36 hand mic.
Icom IC-820H VHF/UHF LSB,USB,FM,CW Transceiver
The Icom IC-820H 2M/440 all-mode transceiver was built with state-of-the-art construction. Output level High on VHF 144-148 MHz is 6-35W SSB, 6-45W FM/CW. Output on UHF 430-450 MHz is 6-30W SSB, 6-40W FM/CW. Satellite operation on the IC-820 includes normal and reverse tracking for different modes of satellite communications; independent uplink/downlink control for Doppler shift compensation, separate satellite VFO and 10 satellite memories provide quick switching from normal to satellite operation as well easy recall of satellite uplink and downlink frequencies. This radio has independent controls and indications for both bands. Other features include: IF shift, 9600 baud Packet ready, AF speech compression, noise blanker, RIT and CW semi-breakin and sidetone.
Icom IC-821H VHF/UHF LSB,USB,FM,CW Transceiver
The Icom IC-821H 2M/440 all-mode transceiver was designed from the start for superior satellite and digital communications. Output power is continuously adjustable. Output on VHF 144-148 MHz is 6-35W SSB, 6-45W FM/CW. Output on UHF 430-450 MHz is 6-30W SSB, 6-40W FM/CW. Sub Band Receive and Sub Band Transmit are both featured. It is 9600 baud compatible right out of the box. A built-in electronic keyer is also supplied. In the satellite mode, the Sub band is set to transmitter (uplink) frequency and the Main band is set to the receiver (downlink) frequency. In this way, the analog S-meter, IF shift, noise blanker and RIT functions can be used for receiving. This is convenient for fine tuning the transceiver’s operation to your needs. The 821H is PACSAT compatible and includes a hand mic (HM-12 w/noDTMF, HM-14 w/DTMF)
Icom IC-551D 6 Meter LSB,USB,AM,CW Transceiver
The Icom IC-551D 6 meter multi-mode transceiver. The supported modes include USB, LSB, AM and CW. The FM mode is available with the optional EX-106. Frequency coverage is from 50 – 54 MHz. Power output is adjustable from 1 to 80 watts SSB/CW and 0-40 watts AM. Other refinements include: Noise Blanker, Dual VFOs . 241x111x311mm 6.1 kg.
