Featuring Fine Vintage and Modern Amateur Radio Gear For Sale

Ten-Tec Model TX-1 Crystal Oscillator & Power Amplifier Module Covers 80-15 Meters First Amateur Radio Product Sold by Ten-Tec New in Box

Write a Review
MPN:
TX-1
Condition:
New
Shipping:
$8.00 (Fixed Shipping Cost)
  • Ten-Tec Model TX-1 Crystal Oscillator & Power Amplifier Module Covers 80-15 Meters First Amateur Radio Product Sold by Ten-Tec New in Box
  • Ten-Tec Model TX-1 Crystal Oscillator & Power Amplifier Module Covers 80-15 Meters First Amateur Radio Product Sold by Ten-Tec New in Box
  • Ten-Tec Model TX-1 Crystal Oscillator & Power Amplifier Module Covers 80-15 Meters First Amateur Radio Product Sold by Ten-Tec New in Box
  • Ten-Tec Model TX-1 Crystal Oscillator & Power Amplifier Module Covers 80-15 Meters First Amateur Radio Product Sold by Ten-Tec New in Box
$74.99
Frequently bought together:

Description

Ten-Tec M

Ten-Tec TX-1 Crystal Oscillator & Power Amplifier Module Covers 80-15 Meters First Amateur Radio Product Sold by Ten-Tec New in Box

Description

  • Crystal oscillator & power amplifier.
  • Tapped toroidal coils cover 80-40-20 and 15 meters.
  • Final amplifier power input 2 watts.
  • 2" x 4" circuit board.
  • 12 VDC @ 250 ma

This is arguably the most collectable Ten-Tec items.

I am selling this item for a friend who collected Ten-Tec gear for many years,

it is sold as is, as described and all sales of unbuilt kits are final.

Here is a link to the product page from Ten-Tec:

https://www.qsl.net/tentec/specs/mr1.pdf

 
Ten-Tec TX-1 is a vintage crystal oscillator / power amplifier (PA) module from the late 1960s (circa 1968–1971), one of the core building-block modules in Ten-Tec's earliest QRP (low-power) modular kits and transceivers. It was part of the Power-Mite series (e.g., Power-Mite 1 / PM-1, PM-2) and the modular MR-1 kit, which allowed hobbyists to assemble simple direct-conversion CW transceivers (primarily for 80m and 40m bands, with crystal control on 15m in basic setups).Key Details and Specifications
  • Function: Combines a crystal-controlled oscillator (for transmit frequency stability) with a basic power amplifier stage.
  • Output Power: Typically ~1–2 watts input (QRP level; actual RF output around 0.5–1W depending on band and crystals used).
  • Bands: Designed for 80m/40m (VFO control via companion VO1 module); crystal control on higher bands like 15m in some configs.
  • Compatibility: Used in:
    • Power-Mite 1 (PM-1): Fully assembled transceiver with TX-1, MX1 mixer, AA1 audio amp, VO1 VFO.
    • Power-Mite 2 (PM-2): Cased version with similar modules.
    • MR-1 Modular Kit: Set of four modules (TX-1 crystal osc/PA, AA1 audio amp, VO1 VFO, MX1 mixer) for home assembly of a basic QRP CW rig.
  • Era: Ten-Tec's very early products (pre-Argonaut, pre-Triton lines); part of the company's initial focus on affordable QRP and modular/homebrew gear.
  • Build: Small printed circuit board module (plug-in or wired); simple solid-state design with discrete components; required external crystals for frequency control.
This is not the later tube-based TX-100 transmitter (from Ten-Tec's earliest pre-1970s vacuum-tube era, paired with RX-10 receiver—extremely rare, only a handful known, often valued in the thousands when complete sets surface). The TX-1 is specifically the modular QRP transmitter board from the Power-Mite/MR-1 family.
View AllClose

Related Products