Bulgarian Radio Amateur
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TLA-450
The TLA-450 is an HF Linear Amplifier designed to meet the needs of all short wave amateur bands and employing four GU-50 high performance transmitting tubes, in a GROUNDED GRID configuration, providing up to 400 Watts power output with excellent linearity. Thanks to the ease of its operation, the TLA-450 allows compatibility with transceivers of the world's recognized leaders (KENWOOD, YAESU, ICOM etc.) . Its compact dimensions allow it to be easily accommodated within your shack. TLA-272
An extension of LZ1DB developments is the TLA - 272, based on the same dimensions as the TLA-450,this amplifier utilizes a pair of up to date GU-72 high performance transmitting tubes which exhibit higher reliability, and power, with which it is possible to reach up to 600 Watts output with excellent linearity. It's classical performance in GROUNDED CATHODE allows the TLA -272 to cover all bands, and CW, SSB & DIGITAL modes of operation. TLA-174
The TLA - 174 is based on both high quality and performance epitomized by a single, rugged, metal-ceramic GU-74B(4CX800) transmitting tetrads which exhibit excellent linearity indices, and superb attenuation of harmonic products. One quiet internal fan provides forced air cooling for the tube, which enabled us to realize the same dimensions as TLA-450 & TLA-272.
GU-43B GU-78B
TLA-143 used GU-43B tube -1500 W... TLA-178 used GU-78B tube - 2500 W...
*These highly professional amplifiers which LZ1DB produces, are built to a personal order and contract...
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