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Tube-Town GmbH

Tube-Town

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Tube-Town GmbH
Rumbergring 37
D-66969 Lemberg
eMail: info@tube-town.de

Socket Noval Ceramic, Chassis w/ Shield

Noval Socket

Ceramic
Chassis mount with shield
Termination Style: solder lugs
for Tube Type: 12AX7, 12AT7, 12AU7 etc.

1,79 €

incl. VAT excl. Shipping costs

piece:

Socket-Saver Noval

Type: Noval Socket Saver
Bakelit
for Tube Type: 12AX7, 12AT7, 12AU7, EL84,
EZ81, EL844 etc.

1,50 €

incl. VAT excl. Shipping costs

piece:

Socket Noval Ceramic PC Mount, Pack of 1

Type: Noval Socket, Pack with 1 sockets
Version: Ceramic
Termination Style: print mount
for Tube Type: 12AX7, 12AT7, 12AU7, EL84, EZ81, EL844 etc.

1,95 €

incl. VAT excl. Shipping costs

piece:

Noval Socket Ceramic Chassis mount

w/mounting bracket
solder lugs
for 12AX7, EL84 and similar

1,00 €

incl. VAT excl. Shipping costs

piece:

Socket Noval Ceramic PC Mount, Pack of 2

Type: Noval Socket, Pack with 2 sockets
Version: Ceramic
Termination Style: print mount
for Tube Type: 12AX7, 12AT7, 12AU7, EL84, EZ81, EL844 etc.

3,90 €

incl. VAT excl. Shipping costs

piece:

Socket-Saver Octal

Octal Socket Saver

Material: Bakelit
for Tube Type: EL34, 6L6, KT88, 6V6, 6550 etc.

3,80 €

incl. VAT excl. Shipping costs

piece:

Socket Noval Ceramic, Chassis w/ Shield - Pack of 5

Noval Socket - Pack of 5

Ceramic
Chassis mount with shield
Termination Style: solder lugs
for Tube Type: 12AX7, 12AT7, 12AU7 etc.

6,80 €
1,36 € per Piece

incl. VAT excl. Shipping costs

Pack:

Bias-Probe Octal, KIT

Kit of a bias probe for indirect measurement of the quiescent bias current of a tube. The adapter is placed between the tube and the socket and is connected to a standard voltmeter (not included). Pay attention to the quality of the meter and to sufficiently charged batteries!

The quiescent current is measured indirectly via a precision resistor built into the adapter. The advantages of this measuring method are harmless voltages in the mV range at the measuring plugs as well as short ways for the current, since it does not have to be led through the measuring device (common practice with many measuring adapters of Far Eastern production). As a result, there is no risk of oscillation of the amplifier, which could damage the tubes or the amplifier itself.

Note: This adapter cannot be used when additional tube brackets are installed. These must be removed before using the measurement adapter and reattached after the measurement is complete.

Measurement procedure
Determine the resistance of the adapter, including the test leads. Connect the adapter to the meter, but do not connect it between the tubes and the amplifier. Select the ohms range on the meter and note the reading, e.g. 1.1 ohms.
For the final measurement, insert the adapter between the tube and the de-energized amplifier, connect it to the meter, select the mV range and switch on the amplifier. When the amplifier has reached a stable operating condition, read the value in mV from the meter and calculate the quiescent current using Ohm's law.

Example
Measured voltage = 47 mV, adapter resistance = 1.1 ohms.
Formula (I = V / R) or in this case
Bias Current (in A) = Measured Value (Voltage in V) / Measured Value (Resistance in Ohm)
0.047V / 1.1 Ohm = 0.042A or 42mA

For the calculation of the correct bias current as well as further information on bias measurement please refer to further documents or the bias setting instructions in the info section as well as the manual of the amplifier itself.
This adapter is suitable for all EL34, 6L6, 6550, KT88, 6V6, 6CA7 and other tubes with the same pinout.

Attention HIGH VOLTAGE ! Measurements and work on tube amplifiers should only be done by qualified personnel.

Files:

Datasheet

15,10 €

incl. VAT excl. Shipping costs

piece:

Socket 7-Pin Ceramic Chassis - 7EK

Type: 7-Pin Socket 7EK
Version: Ceramic Chassis mount
Termination Style: solder lugs
for Tube Type: 12K5 etc.

1,50 €

incl. VAT excl. Shipping costs

piece:

Socket 7-Pin Ceramic Print - 7EK

Type: 7-Pin Socket 7EK
Version: Ceramic
Termination Style: Print mount
for Tube Type: 12K5 etc.

0,55 €

incl. VAT excl. Shipping costs

piece:

Pan Head Screw M3 x 10 mm, DIN 84 / ISO 1207

Type: Pan Head, slotted
Material: Steel
Strength class: 4.8
Surface: Zinc-plated
DIN: 84
ISO: 1207
Price: per pcs.

0,10 €

incl. VAT excl. Shipping costs

piece:

Countersunk raised head screw M3 x 10 mm, DIN 966 / ISO 7047

Type: Countersunk raised head with cross recess
Material: Steel
Strength class: 4.8
Surface: Zinc-plated
DIN: 966
ISO: 7047
Price: per pcs.

0,03 €

incl. VAT excl. Shipping costs

piece:

Polyamide Hex screw M4 x 10 mm, DIN / ISO 4017

Type: Hex Head
Material: Polyamide
Color: white
ISO: 4017
Price: per pcs.

0,17 €

incl. VAT excl. Shipping costs

piece:

US-Standard Flat Head Screw, 6-32 x 3/16"

Type: US-Standard Flat Head, cross recess
Material: Steel
Strength class: 4.8
Surface: Zinc-plated
Price: per pcs.

0,20 €

incl. VAT excl. Shipping costs

piece:

US Fuse 0.200 A slow blow

Rated Voltage: 250 VAC
Contact caps: nickel-plated brass
Size: Ø 6,3 mm x 32 mm

0,55 €

incl. VAT excl. Shipping costs

piece:

TT Kit Lummerland-Express Mk2

Set of componentes for building the TT Lummerland Express - Version Mk2
Now build on PCB
Please visit the >>Project page for more infos about the amp.

INCLUDED:

Mains Transformer universal for 120-230-240 V mains
Outputtransformer
Resistors
Capacitors
Jacks
Light
Wires
Board
Switche
PSU
Tubes (2 x 12AX7,1 x ECC99)
Fuses & Fuesholder

NOT INCLUDED:

Knobs
Chassis
Faceplate

To build this project knowledge in electric engeneering, experience with high voltage, and the reading and understanding of schematics and dealing with measurement device is highly recommended .
There is NO step-by-step guide for beginners. The circuit and layout plan includes all relevant information. If you don't understand it than don't build it.