NOTE! As of 1/2010, I am no longer manufacturing the 1.2G amplifiers. It is unknown if I will begin production with a newer version or not.

I will continue to support and repair all units sold in the past.

Click here for W6PQL 1.2G 75W & 150W Amps!

902/903 Mhz 33cm 130W Amplifiers!


These make great repeater amps for 927 repeaters.

The gain is a little less at 927, usually about 8-9 db. If you need more, I can set these up with another stage activated for an extra 8db+ of gain, so you may only need 1W or less for 70W out. They will easily handle 15W input so if yo really need the output, you can drive them harder to get 70W or so output.

They will run around 70W continuous with a little airflow over them. They have been tested to 100W repeater service just to prove reliability, but would not suggest running more than 70W. When dirven with a 900 Motorola Maxtrac with 7W, they usually produce 50-70W output with a very inexpensive 26V supply at around 5.5A. HERE for power supplies!.

I currently have 11 of these running on 927 repeaters and have not had a failure yet after two years!

When set up for repeater use, they do NOT have the N connectors or power strip. They will be equipped with custom jumpers made from RG-400 with your choice of connectors and jumper length. The power connector will be pre-installed cut to length as requested. They will come with the internal circulator connected and the bias fixed in the ON position. They are still class AB amplifiers.

Set up as a repeater amp, they are $100. If you want the high gain version, they are $120 . Both including shipping to the lower 48.

These are modified surplus cellular equipment. They contain NO T/R switching!!


POWER = 135W ± 0.5db out with 0.8-1W input. (You may notice I reduced the power rating slightly as a cautionary measure since specifications on the devices are unavailable and I have blown a few in the tuning process)

INPUT = 1W.....Saturated at 1.3W. Each amp varies slightly in gain. A data sheet will be supplied with each. Some reach full power at 750mw input and are fully saturated at 1W.

Voltage < 28VDC....MAX!!

Current = 13A.

Size = 4" X 5.5" X 14". (HxWxD)

Power connector = Spade lug terminal strip.

RF Connection = N Female.

LED on front panel to indicate TX mode (bias on).

PTT = Ground to activate bias. Current = 15ma, 28VDC on bias connector when open.

NO T/R SWITCHING! You MUST provide your own EXTERNAL T/R relays.

DUTY CYCLE = 100% @ normal amateur SSB/CW service (with good airflow).....For FM/WSJT, recommend reducing output to 100W and cooling with a fan. 100% key down @ 70W output required!.

PRICE = $150 includes shipping in the lower 48.

Other info.....

I have tested and tortured these amps and here are some notes pertaining to their operation.

YOU MUST BE ABSOLUTELY POSITIVE that your power supply will not spike anywhere near 30VDC!!! These devices are NOT replaceable and WILL FAIL at or near 30VDC!!! I have seen 200W out at 29.5VDC, BUT when I unkeyed, the power supply jumped to 30.1VDC and the device flashed over and destroyed itself. Play it safe..........stay at 28V.

I left one keyed at 120W for a while, and they get pretty HOT....FAST! Use a fan if you are going to torture these. Normal SSB service does not affect these any more than a 150W Mirage 2m amp.

PLEASE keep the drive below 1.3W!!

Don't ask what type of devices are in these......they are a specially built device for Spectrian and I have still not been able to get any info on them. All I know is they are a "tripple" bi-polar transistor. If I ever get specs on them, I will post it here.

Email me directly for all orders and inquiries.

15W Drive Version!!

Available NOW!!

Power connector may vary slightly from one in picture.

They are a little different design internally and MUCH more tolerant to voltage variations with replaceable transistors. They use the boards shown below and look identical to the 1W version shown above on the outside. The output is 130W max. They will also be a little cheaper, $130.


10W in = 80W out....100% CW duty cycle at this power level with a fan.

15W in = 120W ± 0.5db out.

Max output = aprox 130W...recommend 15W max drive.

Max allowable voltage <29.0 VDC.

Current @ 120W = 8A @ 28V.

Gain = 9db ± 0.5db

Bias activation = 14ma to ground @ 28V.

NO T/R SWITCHING! You MUST provide your own EXTERNAL T/R relays.

Email me directly for all orders and inquiries.

15W in, 130W out 33cm 902 MHz boards available!

Want to "do-it-yourself"?....I have avail the leftover 130W 902Mhz boards that have had the driver removed. these come complete with simple instructions on how to connect RF in and out, activate bias and minor tuning. They require 28Vdc and 28Vdc for bias (on board) and 15W drive for 130W out. These are untested but guaranteed to be OK. Price is $30 for the board or $40 with the matching case/heatsink. No connectors or power connections included. The boards bolt directly into the case/heatsink with 4-40 screws(not included) and some strange self tapping hollow hex screws that I will provide. The cases are identical to the 902 and 1296 amps. Devices are BLV958P X 2..... The circulator and most of the stuff at the lower left is not used. The cases do NOT have power or N connectors installed. They will look like the 902 15W drive amp above when finished. You just provide your own connectors and switching transistor to turn on bias (TIP-30C) and you are on the air. Little or no tuning required. It takes me about 3 hours to put one together with very crude tools! Contact me for more info. Click here for instructions!

Email me directly for all orders and inquiries.


These are good for 5W at 2200MHz. N male in and N female out. Either 30 or 40db. $5ea+ $2 shipping...Limit 3 please.

NOTE! These are rated at 5W, but they will self destruct at 6W quite quickly!!!


I am currently out of LDF5 Andrew 7/8".

I have a few short jumpers (2-6') and some longer lengths of Andrew 1/2" "superflex" cable.

I have both "N" and "DIN" female connectors for the above coax types, but prefer NOT to sell separate from the coax, with the exception of 1/2" "superflex"....I have a lot of those!

Unless you wish to pay the high shipping fees, most of the hardline will be "pick-up" or if you wish, I can bring it to either the get-together at Mike's place in Fresno or Larry's place in Vacaville.....I live near Placerville,CA.

Email me for lengths, details and prices.

PLEASE Email me directly for all orders and inquiriesBEFORE ordering or sending money!. Personal checks accepted or via PayPal if you prefer.

International orders via Paypal ONLY! No cashier's checks, money orders, AMEX money orders etc!