The PCB is attached to the heater plate similar to that

below but now made as a one piece block.

The block is heated by a transistor the thermister for temperature control

and crystal are mounted in the block.

The whole unit is thermally insulated and contained in a tin plate box.

It is recommended to fine tune to the required frequency by external potentiometer

connected to the internal varicap diodes or connect to a PLL system.

A .pdf file of the MKII Oscillator Module can be downloaded by clicking here

For more details contact G8ACE