I don’t send hard copies only by ĐㄖＷ𝓝𝐥𝐎αđ

Kenwood TL-922 & A Upgrades With QB4-1100 (tetrode) tubes

(Lowest cost and as effective than 3-500Z & fully compatible (same socket)

This notice includes the service manual and instructions for upgrade your TL-922/A with QB-1100 tubes, circuit’s descriptions with pertinent diagrams, color photos, schematic diagrams, parts list, connections and datasheets components.

99 pages available in 21 x 29.7 cm format, by **ĐㄖＷ𝓝𝐥𝐎αđ**

Note: QB4-1100 identical to 4-400A, 8438, RS1002A Tubes

Also includes:

- Original and modified schematics

- How to add 10m band

- How to make and replace the parasitic suppressors

- How to add a soft-Key module

- How to make a simple soft-start circuit

- How to make and install a universal soft-start

- How to add a soft-start circuit kit

- How to make & add a QSK switcher

- How to make & install a new BIAS zener diode

- Adjustable BIAS principle & install

- Filtering install

- How to reactivate a New or NOS QB4-1100 tube

- How to adjust the tank coil

- Data sheet and connection tubes

- And other knowledge

No shipping costs! No risk of loss! Quickly accessible!

Access provided first business day upon payment.

E-MAIL if you have any question, don't hesitate to ask me.

THANKS for your interest on this item!

And most importantly, thank you very much for almost 4500 buyers were satisfied.