Elecraft Transverters and other items for Sale in CN88

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Mike Lewis

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Jan 10, 2022, 2:39:53 AM1/10/22
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I have 3 extra Elecraft transverters - 144, 222, 432 - all modified to use and external LO such as a DigiLo module (not included) with appropriate gain stage. Each has a SMA jack on the back panel for the LO. The external LO changes are easily reversible, any removed parts are attached inside or just a lead lifted. All 3 have the crystal oven option installed (currently deenergized). $350ea or bundle offer considered.

If someone wants all 3 transverters I have one of my Multiband LO control units (Digilo, band decode input, auto/manual band switching, RF output on up to 6 ports, power measurement in one of the positions, gain and programmed step attenuator, antenna or transverter enable outputs) that I might be persuaded to part with. It sets the proper IF drive level for each transverter connected. LCD and encoder for manual config and control.

A cable to daisy chain up to 4 of these transverters is also supplied.

These transverters output about 20W, have a LED bar graph output meter, jacks with jumper configuration for spit IF and split RF, Key in and Key out. If you have a K2, K3, or K4, the Aux bus serial signal does the Transverter selection for you. There is a remote enable signal in the DB9 connector useful for remote control if you do not have a Elecraft rig and each also have a front panel power switch. The input drive level is adjustable from -20dBm to several watts. The RX output is also adjustable. I likely have original manuals for each though they are downloadable as well.

Other items that need to move on, offers considered:

1. Crystal controlled Microwave Modules 2M transverter, 10W output. At one time I replaced the crystal with a PLL module I had around for digital mode EME long ago.
2. Kenwood TS-700A all mode 2M rig
3. Kenwood TS-930S, in proper good working condition with foot switch and manual, schematics. Some minor modifications (like memory battery removed).
4. Tokyo Hi-Power HL-90 430Mhz amp. The low power mode is not working since the PIN diode was in that circuit was moved to the TR circuit. The preamp has failed and been repaired along with the preamp bypass relay more than once and may or may not be working now. I think it still puts out 60W though with about 10W drive.
5. Microwave Modules 1296 to 28Mhz downconverter module, unused. Small black diecast box.
6. GPSDO in rack chassis. Thunderbolt GPSDO unit with AC power supply and 5 port 10Mhz distribution amp mounted on the inside back panel. 4 BNC out ports on the back, 1 BNC out port on the front panel. 1PPS BNC port also on the back. GPS antenna uses F connector.
7. Bird Wattmeter (meter in metal case only - no line section or detector) with 50uA movement.
8. Bird 2.5KW water cooled dummy load with RF power detector (3 ranges - 100W, 500W and 2.5KW).
9. 1U rack panel in the garage with 2 Line sections (Bird compatible) mounted with BNC detector outputs jacks on the front.
10. Tektronix 1401 spectrum analyzer. 500Mhz, hooks up to a o'scope for display. 12VDC.
11. HP 8610A RF sweep generator


Mike Lewis
K7MDL
CN88sf and EL87sm

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Mike Lewis

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Jan 29, 2022, 5:10:50 PM1/29/22
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The XV432 and MMT 144 transverters have been sold.

Updated list for sale (main ticket items), some new items added:

1. 10W transverter store 222 Xvtr - $offer
2. XV222 Xvtr - $350
3. TE Systems 2210G 222Mhz 130W amp. 4-10W input. 12VDC Preamp. >110W out last measured. - $325
4. SG-Labs 1296 Xvtr (has ext 10Mhz ref input) + SG-Labs 25W PA/LNA - $150 (currently mounted on common heat sink) - $300
5. XV144 Xvtr - $350
6. Tokyo Hi Power HL-90U 432 PA. I measure about 60W out for ~10-13W drive. The preamp has been repaired a few times, the last one required stealing the PA low power PIN diode switch to replace the preamp bypass PIN switch diode. - $offer
7. TS-700A - offer
8. TS-930S - offer
9. Bird Dummy load, 2.5KW water cooled - $150


- Mike K7MDL.

Mike Lewis

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Jan 29, 2022, 5:17:28 PM1/29/22
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Formatting went wonky. Also forget to add 1 item so resending.

1. 10W transverter store 222 Xvtr - $offer

2. XV222 Xvtr - $350

3. TE Systems 2210G 222Mhz 130W amp. 4-10W input. 12VDC Preamp. >110W out last measured. - $325

4. SG-Labs 1296 Xvtr (has ext 10Mhz ref input) + SG-Labs 25W PA/LNA - $150 (currently mounted on common heat sink) - $300

5. XV144 Xvtr - $350

6. Tokyo Hi Power HL-90U 432 PA. I measure about 60W out for ~10-13W drive. The preamp has been repaired a few times, the last one required stealing the PA low power PIN diode switch to replace the preamp bypass PIN switch diode. - $offer

7. TS-700A - offer

8. TS-930S - offer

9. Bird Dummy load, 2.5KW water cooled - $150

10. Microwave Modules 1296 to 28Mhz downconverter - $offer
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