The ten tec 425 has been a reliable amplifier for me since i purchased it new in 1990. They look really low current since there is a 1k ohm in series with a 1. Maybe the transition from ten tec to rkr ended up leaving a few things behind. Does anyone know where you can get a parts list for ten tec rigs. The files may be viewed and printed using your pre installed pdf reader software. The manual i have does not show info on relays such as type dpdt, spst etc or parts numbers or manufacturers.
Linear amplifier in grounded grid configuration using a ducted forced air cooling system. Just use tx3 rca output to key the amp double ended rca cable from the flex tx3 to the titan ptt. K6sti has an upgraded free coil software version on his website. Like i said the one shown here is in absolute mint condition, hardly ever used. This page uses frames, but your browser doesnt support them. The titan model 425 is an advanced design linear amplifier which uses two. K6sti has an upgraded free coil software version on. Amps problem with ten tec titan 425 amplifier, jim brown.
The ten tec titan model 425 covers all ham bands, 160 meters to 10 meters. Great deals from kj4iye manuals in amateurhamcd ebay. Tentecs service department can repair and service virtually everything we have built going back to our first transceivers in the late 1960s. Is anyone familiar with the ten tec titan 425 linear amplifier i have an arcing problem in the tank circuit. Ten tec inc sevierville tn, build 1991, 1 pictures, 2 schematics, 2 tubes, united states of america, semiconductors, rf radio. Ten tec titan 425 amplifier with ameritron al800h p. The ten tec model 1054 is a simple 4 band regenerative shortwave receiver kit.
The only issue that i experienced was the input bias circuit board located in the rf deck. This explains how to modify the ts850s full qsk feature and avoiding hot switching the relay in the amplifier when operating full qsk. When the hv winding shorted to the low voltage winding it took both of the 3cx800s. Does anyone have a schematic or board layout for the titan 425 display board 81220 rev b. I talked to the service department about the problem and in a few days the replacement board arrived with the enclosed invoice noting to please send back the old board. The model 417a titan iii is an advanced design linear amplifier using two. If you have some stuff that not is listed here you can donate this by contact mods.
Unusually, the jfetbased detector in the ten tec 1253 regenerative receiver uses a twoterminal tuned circuit no feedback tap or tickler winding and includes a groundedgate jfet in the feedback loop. Cd manual includes 600% high resolution schematic diagrams. Tentec inc sevierville tn, build 1991, 1 pictures, 2 schematics, 2 tubes, united states of america, semiconductors, rf radio. Amps problem with ten tec titan 425 amplifier, gudguyham. In this page you find schematic, users and instructions manuals, service manuals, technical supplement, leaf leads and other good stuff.
The picture can show the front, rear or inside the equipment. Ten tec pegasus software controlled hf transceiver. I have a tentec titan model 425 power supply with a bad relay and cant figure out how to get a replacement. A quick test of a ten tec titan 425 hf linear amplifier after completing repairs to multiple portions of the amplifier. Im trying to avoid bypassing the safety interlock and operating with the cover removed to see the source of arcing. Ten tec also handles warranty claims on the 4cx1600b tube. Have you picture that not already are shown here you can upload pictures to mods. Here are the multitude of secondary voltages on the titan transformer. Titan 425 amplifier with ameritron al800h transformer. Ten tec titan 425 for saletitan 425 hf amp amp uses 2 3cx800a7 tubes will do 1500 watts. Transformer john, w1an 872014 there have been several failures of the original power transformer in the titan 425 amplifier from shorts in the hv winding. Make sure the radio is plugged in and a cable is connected.
Partial schematic of ten tec titan 425 rf power amplifier most recent update 12 feb 08 i own three of these vintage amps, and they require frequent maintenance to keep them running. Penta svetlana 4cx1600b power amplifier linear tube new nos ten tec 416 titan ii. Set standby on the titan, tune the ant swr flat with the mfj998. Select picture or schematic to display from thumbnails on the right and click for download.
Ten tec titan 425 using 2 3cx800a7 eimac tubes for 1. Ten tec s printed schematics are spread across a dozen sheets, and are difficult to follow. If my titan ii ever needs repair i am confident that the service department will be responsive and will fix the problem on the first try. Schematic of the ten tec 1253 regenerative receiver. If you want to join us and get repairing help please sign in or sign up by completing a simple electrical test or write your question to the message board without registration. Tentec 565 sch service manual download, schematics. If the builder finds that the amp loses efficiency on the 160m. We also offer support via telephone for all products via during usual business hours of 8 a. As i tune and apporach full rated power the arcing starts. Rigpix database power amplifiers tentec titan iii 417a.
Here you will find picture of many radios and other related amateur equipment. Ts850 and ten tec titan 425 pa if youre using the kenwood ts850s with the ten tec titan 425 linear pa read this. I have a tentec titan model 425 power supply with a bad relay and. This was possibly caused by less than adequate insulation layers at the internal lead wiring points that eventually wore through. Tentec titan 425 amp ham radio amplifier worldwidedx. I have always heard ten tec service was pretty good and i have even been eyeballing a new argonaut lately. The titan is very tough, so nothing to worry about. Ten tec titan 425 w 425s supply ham radio 16010 hf linear amplifier tested discussion in cb radio gear ebay auctions ending soon started by ebay, oct 30, 2014. Amps problem with ten tec titan 425 amplifier, ray benny ten tec titan 425 amplifier, ray benny. Rigpix database linear amplifiers tentec titan 425. Integrated radio station software for transceivers. Tentec titan 425 3cpx800a7 modification i believe that this is the web page that has that modification. Radio manuals and schematic diagrams this link is listed in our web site directory since saturday sep 12 2009, and till today ten tec manuals has been followed for a total of 1047 times.
The front panel qskptt switch on the ten tec amplifier must be switched to ptt for all modes of operation. The manual i have does not show info on relays such as type dpdt. Connecting a ten tec transceiver to a non ten tec amplifier. I was also very impressed with the sales and service staff at ten tec. Summary of contents for ten tec titan ii 416 page 1 we can repair or service your ten tec equipment at our facility in sevierville, tn. To run the software with these radios you must do the following.