6P1 pair + 6N1 pair (4pcs) Matched & Balanced TUBES VALVES Upgrade Nobsound MS

Description

Made in USSR
Upgrade tube Set of Four NOS Tubes for
Nobsound MS-10D / 30D, Liston 12
,
Madison MAD-TA10BT
and another
stock Chinese 6P1/6N1 amplifiers.
Tested and Measured Pair
6N1P-EV
Double triodes
We test our tubes from this type on High-End Soviet Military Tube Tester:
L3-3
Measured parameters attached to each tube,
difference
between sections and between tubes
< 5%
on
the photo shows an example of tubes with parameters, if you need actual parameters, please ask
+
Mapched pair 6P1P-EV (6П1П-ЕВ)
100% New Item
Old stock. The tubes are new and never used
"Svetlana" factory
Same Date code
"OTK" marked
Measured parameters attached to each tube,
difference < 3%
on
the photo shows an example of tubes with parameters, if you need actual parameters, please ask
Very careful packing
Lot of 4 (
Matched & Balanced Pair 6N1P-EV +
Matched & Balanced Pair 6P1P-EV
)
Shipping:
This item will be shipped via
Express Mail Service (EMS)
to the following countries:
Canada, Italy, Spain, Portugal,
China,
Australia,
New Zealand, Taiwan.
U
sually delivery time is 7 - 12 business days.
To other European countries the order will be sent by regular economy shipping with a track number.
I will combine the shipping cost and send you an invoice with a total (
less expensive)
shipping cost.