engraved and drilled front panel set (front and back) for ZM-4 ATU 160-10m from QRPproject

material: AL - 1 mm

surface: matt black anodized

from BaMaTech Feinmechanik

The ZM4 kit is not included !

Set of band specific parts to complete the SDT21 basic kit to a complete 40m monoband TRX!

 can only be ordered together with a SDT21 basic kit!

simple "digital" monoband transceiver SDT21

The goal of this project was the development of a simple to build CW monoband transceiver based on the direct superheterodyne principle with crystal control a la "PIXIE" or "Rockmite", but with much better technical data. To minimize the circuit effort, the concept should be as highly integrated as possible and realizable without hand-wound coils. Furthermore, for the SMD phobics, SMD placement was completely omitted this time. Despite these specifications, it was possible to fit the entire circuit on a double-sided PCB with dimensions of 69x52mm, which allowed it to be installed in the small TEKO A2 package.

The main focus of the circuit is based on the little known fact that digital inverters or gate devices of the 4000 CMOS series can be operated as analog amplifiers by a circuit trick, important here is the use of the unbuffered IC variant (index UB).

Please order the desired "set of band specific parts" according to the desired frequency!

Schurr Profi M by Stefan Bergsiek

Schurr-Profi M

Stainless steel polished V2A Niro

Dimensions 100x80x28mm

Special edition stainless steel

The paddles are mounted backlash-free with hardened cylindrical pins in brass plain bearings. Due to this connection the bearing is absolutely maintenance-free! The advantage of this paddle bearing is that, unlike a ball bearing, no gumming up can occur over the years and the bearing can fail or become stiff. Any adjustment of this paddle bearing is not necessary.

Hard silver contacts as well as fine thread are standard.

319€ Christmas offer

Spare cover for Schurr Profi 2 and Profi 3

SOTA Schurr Wabbler by Stefan Bergsiek

small portable key from Schurr / Bergsiek

gold plated

about 170g

No springs are installed. The paddle reset is made by magnets

The paddles are mounted without play with hardened cylinder pins in brass sliding bearings. Due to this connection, the bearings are absolutely maintenance-free! The advantage of this paddle bearing is that, unlike a ball bearing, no hardening over the years can occur and thus the storage can fail or become difficult. Any adjustment of this paddle bearing is not necessary.

Hard silver contacts as well as fine threads are normal standard.

The key is delivered with a 1.5 m long high-quality cable and 3.5 mm jack plug-in connector.

The key is made of full brass

Can also be installed as a replacement mechanism in an old ETM

preorders are now accepted

desk stand for the KX3

from Stefan Bergsiek

desk stand for the PX3

from Stefan Bergsiek

The new high precision SO1-NG TCXO replacement for the Kenwood TS930 transceivers

This board is a aftermarked replacement for the Kenwood SO-1 TCXO UNIT, which is no longer available as original spare part.


The specifications:

- Output frequency: 20MHz
- Frequency stability: +-0,5ppm (or with extra high stability option: ±0,14ppm)
- Operating Temperature Range: -20 to 70°C
- Frequency tuning range: 200Hz
- Power supply requirements: 4,5 to 28 VDC, max. 3mA

if you want the extra high stability, please add "TXCO high stability" to your order

The new high precision SO1-NG TCXO replacement for the Kenwood TS940 transceivers

This board is a aftermarked replacement for the Kenwood SO-1 TCXO UNIT, which is no longer available as original spare part.


The specifications:

- Output frequency: 20MHz
- Frequency stability: +-0,5ppm (or with extra high stability option: ±0,14ppm)
- Operating Temperature Range: -20 to 70°C
- Frequency tuning range: 200Hz
- Power supply requirements: 4,5 to 28 VDC, max. 3mA

if you want the extra high stability, please add "TXCO high stability" to your order

The new high precision SO2-NG TCXO replacement for the Kenwood TS50, TS850, TS870, TS690, TS570D, TS950 and TS450 transceivers

This board is a aftermarked replacement for the Kenwood SO-2 TCXO UNIT, which is no longer available as original spare part.


The specifications:

- Output frequency: 20MHz
- Frequency stability: +-0,5ppm (or with extra high stability option: ±0,14ppm)
- Operating Temperature Range: -20 to 70°C
- Frequency tuning range: 200Hz
- Power supply requirements: 4,5 to 28 VDC, max. 3mA
 

if you want the extra high stability, please add "TXCO high stability" to your order

Option for extra high stability if required please order separately.

only in combination with TCXO SO1-NG / TCXO SO2-NG

- Frequency stability: ±0.14ppm

AXE1 40m extender

extension to use  the AX1 Antenna on 40m and 30m (internal ATU needed!)

delivery include:

40m extension coil (15cm)

radial wire (10m)

Set of band specific parts to complete the SDT21 basic kit to a complete 30m monoband TRX!

 can only be ordered together with a SDT21 basic kit!