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Buying Guide

What to Send When You Request an Electron Tube Quotation

The five pieces of information that turn an enquiry into a usable quotation, and what to expect back.

Why Enquiries Stall

Most enquiries that take several rounds of email stall for the same reason: the first message names a product category rather than a type. A supplier cannot price a category. Sending five specific items at the start removes the delay entirely.

One: The Type Designation

Exactly as printed, including suffix letters and any spacing or hyphen. If there are several markings on the tube, send them all and say which one you believe is the type. A photograph of the marking is worth more than a retyped number.

3CX1500A7 power grid triode supplied by HAN Trade
3CX1500A7 — see the listing

Two: The Quantity

Say whether this is one tube for a repair or a quantity for production, and whether you expect to repeat the order. Both are normal, but they lead to different answers on availability and packing.

Three: The Accessories

State whether you need the socket the cap connector the chimney or the water jacket. Accessories quoted with the tube arrive with the tube.

Four: The Equipment

Naming the machine or the transmitter the tube goes into helps when a designation is ambiguous, and it lets a supplier flag an obvious mismatch before anything ships.

Five: The Deadline

Say when you need it. A line that is down and a build scheduled for next quarter should be quoted with different transport methods.

What Comes Back

A written answer by email with price, availability and the data we hold for the type, so it can be checked against your circuit and passed to purchasing. If we cannot offer the designation you sent, we say so rather than substituting something without telling you.

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FAQ

Questions About This Guide

Which address should I write to?

Send enquiries in English to the sales address published on the contact page. Chinese language enquiries can go to the second address listed there.

Do you quote in writing?

Yes. Price and availability come back by email so you have a document to work from.

Put This Into an Enquiry

Send the designations you have identified together with quantities. Price and availability come back by email.