ECH84 ECH84 by Valvo is a Triode-Heptode vacuum tube designed for TV purposes. It features a 6.3V filament voltage and 0.3A filament current, with a Noval 9-pin miniature base.
Mfr Part #:

ECH84

Available from 1 distributors
Mfr Name: Valvo
Valvo
ECH84 by Valvo is a Triode-Heptode vacuum tube designed for TV purposes. It features a 6.3V filament voltage and 0.3A filament current, with a Noval 9-pin miniature base.
✓ Total Stock: 6 pcs
$ Price Range: $1.20

ECH84 Available from 1 distributor

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Non-Authorised Inventory information
6 pcs
6 pcs On Request 1 On Request On Request 2026-02-25 06:16:38 On Request On Request

ECH84 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Base Type

ECH84 Description

Short technical summary and product information.

The ECH84 is a Triode-Heptode vacuum tube manufactured by Valvo, intended for television applications. The heptode unit provides straight characteristics, making it suitable for use as an AM modulator.

 

Electrical specifications include a nominal filament voltage of 6.3V and a filament current of 0.3A. The tube uses a Noval 9-pin miniature base (also known as USA pico-9 or B9A).

 

This tube is part of a family that includes similar and replacement types such as 6JX8, 6ET5, ECH84a, EH90, ECH200, and PCH200.

ECH84 Quick Information

Product Type: Vacuum Tube
Canonical Name: ECH84 Triode-Heptode Vacuum Tube

ECH84 Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

ECH84 Estimated Pricing

Qty Low High
1+ $1.20 $1.20

Estimated market price range - modelled values for guidance only, not live distributor offers.

ECH84 Features

  • Triode-Heptode vacuum tube design.
  • 6.3V filament voltage, 0.3A current.
  • Noval 9-pin miniature base (B9A).
  • Heptode with straight characteristics.
  • Suited for AM modulator in TV circuits.

ECH84 Applications

  • AM modulator in television circuits.
  • TV receiver signal processing.
  • Heptode mixer or oscillator stages.

ECH84 FAQs

5 frequently asked questions generated from this part’s specifications.
What is the filament voltage of the ECH84?

6.3V

What is the filament current of the ECH84?

0.3A

What type of tube is the ECH84?

Triode-Heptode

What base type does the ECH84 use?

Noval, 9 pin miniature (USA pico-9) B9A

What is the ECH84 designed for?

TV purposes, specifically as an AM modulator

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