Heater
Uf ……………6.3 V
If…………………………1.6 A
Maximum Rating
Ua……………………800 V
Ug2………………600 V
Ug1………………-200 V
Pa………………42 W
Pg2…………8 W
Ua+g2…………46 W
Ik……………………230 mA
Uh-k……………200 V
Tbulb…………………250 C
Rg1
with cathode bias
Pa+Pg2≤35W 0.47 MΩ
Pa+Pg2 > 35W 0.27 MΩ
with fixed bias
Pa+Pg2≤35W 0.22 MΩ
Pa+Pg2 > 35W 0.10 MΩ
Direct Interelectrode Capacitances
tetrode connection triode connection
input………16 9.3 PF
output ……… 12 17PF
grid to plate………1.2 7.9 PF
tetrode connection
Ua…………………… 250 V
Ug2……………………250 V
Ia ……………………140 mA
Ig2(approx) ………3 mA
-Ug1(approx)………15 V
Gm ……………………12 mA/V
ri ……………………12 KΩ
Ug1-g2……………… 8
ri ……………………670 Ω
u………………………8
triode connection
Ua.g2…………………250 V
Ia+g2…………………143 mA
-Ug1(approx)………15 V
Gm ……………………12 mA/V
1. All payment must be prepaid.
2. We only accpet payment via paypal. Please kindly check if you can do the payment via paypal before placing an order.
1.
We are not responsible for undeliverable address. We reserve the right
to charge the shipping fee again for returned item due to wrong address.
2.
Item are generally shipping out within 2 working days after your
payment have been cleared. We ship on Monday to Friday (excluding Public
Holidays).
3. Orders from the HongKong or Shenzhen will all be shipped out via the post postal.
4. We Ship to Worldwide, except the excluding country. Most delivered 10-30 business days.
1. We offer 30 days money back guarantee return policy.
2. We will responsible for the postage of damaged replacements. Refund will be made upon receipt of the returned item.
