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Appliance Servicing

CDA provide a quality and effective after-sales service to cover all your servicing needs. Please attach your receipt to this page for safekeeping.

Please help us to help you by having the following information available when booking a service-call:

1.Model type, make and model – see the product data plate.

2.Evidence of installation / purchase date

3.Retailer where appliance was purchased

4.Clear and concise details of the fault

5.Full address including postcode and any contact phone numbers

Contact telephone numbers

CDA Customer Care Department

–Telephone: 01949 862012

–Fax: 01949 862003

–Email: service@cda.eu

Guarantee

CDA appliances carry a five-year parts and a one-year labour guarantee.

CDA will repair or replace any defect or part attributable to faulty material or workmanship. Within the first year this will be free of both labour and parts charges. After the first year and within five years, the parts will be supplied free of charge provided that the repair is carried out by an agent authorised by CDA and the labour will be charged at the commercial rate applicable at the time of repair.

The appliance must have been installed by a suitably qualified person and in accordance with the manufacturer’s instructions and current legislation. The guarantee does not cover faults caused by the incorrect fitting of appliances.

Limit of Cover

–The guarantee does not cover cosmetic damage e.g. discolouration or oxidisation.

–Proof of purchase or installation date must be produced before a service-call will be booked.

–The appliance must be used for domestic purposes only. Appliances used for commercial or professional purposes are not covered by the guarantee. Commercial warranty is available at extra cost.

–The appliance must not be modified or tampered with or repair attempted by any unauthorised person.

–The guarantee does not cover damage caused in transit or by misuse, accident, abuse or neglect.

–The guarantee does not cover routine maintenance.

–Use of parts not supplied or recommended by CDA will invalidate the warranty.

–Rubber seals, filters, removable glass parts, control knobs and buttons, fuses and light bulbs will need replacing periodically and are not covered by the guarantee.

–Second-hand or reconditioned appliances are not covered by the guarantee.

The conditions under which this guarantee is offered are in addition to the statutory rights of the domestic purchaser and these statutory rights are not affected by this guarantee.

CDA reserve the right to change specification without prior notice.

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CDA 6V6, 6Z6, 6Q6 manual Appliance Servicing, Guarantee, Limit of Cover, Contact telephone numbers
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6Q6, 6V6, 6Z6 specifications

CDA 6Q6, 6Z6, and 6V6 are three notable vacuum tubes that have played a significant role in the realm of audio amplification and electronic devices. Each of these tubes has unique features and characteristics that make them ideal for various applications, particularly in the world of vintage audio equipment.

The 6Q6 is primarily used in audio amplifiers and radio transmitters. It boasts a maximum plate power dissipation of 19 watts, making it suitable for moderate power output applications. The tube operates with a relatively high gain and is well-regarded for its ability to produce a warm, rich sound that is cherished by audiophiles. The 6Q6 is also noted for its linearity, providing accurate sound reproduction, which is essential for high-fidelity audio systems.

On the other hand, the 6Z6 is a lesser-known tube that was designed for use in similar applications. It operates at lower power levels compared to the 6Q6, typically being used in smaller radio applications and low-power audio amplifiers. With a maximum plate power dissipation of around 14 watts, it is perfect for specific niche applications where size and power consumption are critical. The tonal characteristics of the 6Z6 may not be as robust as the 6Q6, but it still provides a pleasing sound suitable for small, vintage audio applications.

The 6V6 is one of the most popular and widely used power tubes in electric guitar amplifiers and hi-fi audio systems. Known for its distinctive sweet tonal qualities, the 6V6 is favored by many musicians and audio engineers. The maximum plate power dissipation of the 6V6 is around 14 to 20 watts, depending on the specific variant, which makes it versatile for various setups. Its robust frequency response allows it to handle both clean and overdriven tones effectively, making it an ideal choice for guitar players seeking to achieve a unique sound signature.

All three tubes showcase advancements in thermionic technology, providing excellent reliability and performance. They each have distinct electrical characteristics, such as differing gain levels and power handling capabilities, allowing engineers and designers to select the appropriate tube based on the specific requirements of the audio circuit. Despite the advent of solid-state technologies, these vacuum tubes continue to enjoy popularity in the realms of vintage audio, guitar amplification, and specialized communications equipment, showcasing their enduring legacy and appeal within the industry.
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