If you want to order an amplifier already mounted and tested, or the all parts amplifier kit, please mail me at ricardo.pastor@heatedcathode.com. I will then contact you with further information on payment and shipment.

Shipped and sold by

Tecnograma Consultores S.L.
c/ Alvarez Quintero 19
03690 San Vicente del Raspeig
VAT ID ESB53271409

Payment options

You can pay with an international bank transfer (IBAN) or via PayPal. You don’t need to own a PayPal account to pay with credit card, you may enter your credit card’s data directly at PayPal.

We can make VAT free (VAT excluded) invoices, for VAT registered companies in EU.


I only use the best parts available on the market. The selection of these components has been made extremely carefully, in order to prevent disappointment in our customers/clients.

I would like to emphasize that the voltages existing in the circuit can cause an electric shock which could be potentially lethal. Therefore, I cannot be held responsible for any accident, or injury resulting from the use of the circuit.

If you would like any further information, please do not hesitate to contact me.