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Full Music

 
 
 

Overview Fullmusic tubes 

 Application

300B/n
300B , Fullsize image , Socket

Datasheet , Curves

1:1 copy of original 
WE300B. 

Plug-in replacement 
without any restrictions.


300B/n


300B/n-Gold

1) 300B/n , Fullsize image , Socket

2 300B/n-GOLD , Fullsize image , Socket
 

This is a mesh Plate 300B. The Gold version has a ceramic socket with gold pins. 

Datasheet , Curves

Detail1 , Detail2, Detail3

Day-glow , Nightview 1 , Nightview2

300B replacement.
BUT.....

Important: For 300B/n 
=MESH tubes
Recommended use value:
22Watt for 
best lifetime.

More mportant: 
For 300B/n 
=MESH tubes
Maximum 28 Watt. 

2A3/n
This is a mesh Plate 2A3.
Construction is like old RCA tube.
2A3/n

Fullsize image , Datasheet1 , Datasheet2
detail1 ,

Direct replacement for
any 2A3.

274A


274A/n


274B


274B/n

274A,  274A/n, 274B, 274B/n
These are an quivalent to Western Electric 274A/274B, using the nice big glass of the WE300B. 

274A and 274B are the same tube, apart from the socket which is different.  274A used an UX4 socket, 274B uses an octal socket.  274A/n, 274B/n are a mesh version.

Important Note: 

This tube is a special audio rectifier, with a higher plate resistance than industry rectifiers, such as GZ34 or 5U4G.  The advantage if this is a soft "on" characteristic while charging the first capacitor. 

This is the principle of how to use this tube:

The 274 is made to run on a small value first capacitor, and the value is limited at 4uF maximum, by the official WE datasheet. This will result in lower hum, and much improved sound quality. The AC rejection will come mainly from the choke, which must have a high value (15...20H) and ideally symmetrically constructed with two coils for best noise rejection. (Like Lundahl 1673/20) The second capacitor is used for fine ripple rejection, and overrating of this capacitors is possible, as much as you want. 

Fullsize image , Datasheet , Curves

274A-Socket , 274B-Socket

Mesh plate , Getters

Max 140mA
Rectifier 
for HiFi 

Low hum type with
soft characteristic. 


274B/n+
 
Click Image, and  see how impressive size this  tube is.  This is no trick image! Also the glass is a  most beautifull,  hand blown balloon.  Very smooth surface. Buy it, and you will experience this wonderfull tube.  Most recommended product. The night view of the tube is truly magnificent, because of the big size  filament

This is a large size 274. 

has twice the filamant current, and
lower voltage loss over the tube. 
Customers reported up to 25 Volts more output
voltage with the same transformer.
 

Fullsize image , Datasheet

Side1 , Getter , Side2 , Day-Glow
 

Max 250mA 

Rectifier 
for HiFi. 

Filament
rating: 

5V / 4A






 

 

Very nice driver tube. PX4/n-Gold
This is a mesh version of the PX4, 
using a white ceramic UX4 socket, with gold pins
(Same socket as 300B) 

Fullsize image , High-Resolution

Night-view , Day-view
 

Driver tube for Triodes. 
Horn driver.

Extremely nice made copy of the PX25 PX25/n-Gold
This is a mesh version of the PX25, 
using a white ceramic UX4 socket, with gold pins 
(Same socket as 300B) 

Fullsize image , High-Resolution 

Datasheet , Curves

Socket , Night-Glow-Front , Night-Glow-Side , Day-Glow
 

300B-Like tube, but
with silkier sound,
less dominant.

Recommended use
value:
20Watt for best
lifetime.

 

Fullsize image

Horn driver tube
45/n-Gold
Direct replacement for the 45, using a white ceramic socket, with gold pins
Extremely nice made tube!
101D
101D/n
Mesh Plate 
Equivalent of WE101D

Fullsize image , DatasheetCurves
.
Inside

Direct heated 
Pre-amp or driver tube
102D/n
102D/n
Mesh Plate 
Equivalent of WE102D

Fullsize image , DatasheetCurves

Direct heated
Pre-amp tube

205D/n
Mesh Plate
Equivalent WE205D

Fullsize image , DatasheetCurves
Original WE205D datasheets + pictures

Driver tube for Triodes. 
Horn driver.

 

Full music JAC Music
Horber Steige 25,    
D-72172 Muehlheim,  
Germany
Tel: 0049-7454-406777  
Fax: 0049-7454-406888
Mobile: 0049-175-5382641
E-mail: