F+T 50 + 50 µF / 500 V Multisection

Clamp for capacitors

• Material: Steel, galvanized
• Diameter: 35 mm

• Type:Toggle Switch
• Version:SPST, ON-OFF
• Rating: 3A / 250V, 6A / 125V
• Insulation resistance: 100MΩ min.
• Dielectric strength: 1000V min.
• Operating Life: 25.000 cycles
• Drill Ø: 12 mm
• Termination Style: solder-lugs

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

Metaloxide film resistor

• Nominal Power: 1 Watt
• Max. cont. Working Voltage:: 500 V RMS
• Tolerance: +/- 5%
• Temperature range: -55° C...200° C
• Flame retardant
• Very Small Size
• Size: 6,3 x 2,4 mm

• Type: Toggle Switch
• Version: SPST, ON - OFF
• Rating: 15A / 250VAC, 10A / 400VAC
• Contact resistance: 10 mΩ max. at 1A 2VDC
• Insulation resistance: 1.000 MΩ min. at 500VDC
• Dielectric strength: 2.000 Vrms 50 Hz min.
• Operating Life: 10.000 cycles at full load
• Termination Style: solder lug / quick-connect terminals

Files:

• Datasheet

• Wide body and extremely durable contacts
• Mates with all mono A-gauge plugs acc. EIA RS-453 standard

Files:

• Datasheet

Carbonfilm Resistor
Low noise, small size, high power rating
Power: 1 Watt
Voltag: 500 V working / 1000 V overload
Axial Leads
-55° C - 155° C
12 * 5 mm
RoHS

Carbonfilm Resistor
Low noise, small size, high power rating
Power: 1 Watt
Voltag: 500 V working / 1000 V overload
Axial Leads
-55° C - 155° C
12 * 5 mm
RoHS

Custom Shop Faceplate, Transply, laser engraved

• Max. Width: 600 mm
• Material:
  • 1,5 mm Transply all Colors starting with #C
  • 0,8 mm Transply all Colors starting with #D
• Working area: see option list
• Colors: see option list
• Engraving: Yes
• Cutting: Yes
• Resolution: max. 500 dpi
• Machining: Laser

Important:

• We will not produce faceplate which contain copyright-protected elements like logos or names !
• Minimum size of an plate: 5 x 5 cm
• Smaller objects should be connected to larger objects otherwise they can get lost. Example: connect the i-dot with the rest of the lettering for a cut-out lettering.
• Minimum distance between two blades: 3 mm
• Bitmaps and Inkscape: If possible DO NOT use bitmaps, because this causes many problems: the PDF file could be corrupt or the quality of the finished product is bad etc.. Bitmaps should always be converted to vector graphics before they are used in the layout. There are numerous online converters which convert bitmaps (PNG, JPG etc.) to SVG. Use them, convert the Bitmap and avoid problems.

How does it work ?

First of all you should read the documents and infos on the TT LaserShop Pages !

a) Select the required size, material and color combination

Hint: Several objects can be placed on a work surface, so cost-efficient material processing is possible. Example: two plates with a size of 55 x 490 mm (front and back plate) can be placed on a work space H2 with the overall size of 150 x 600 mm and can be ordered together. The configurations and optimizations have to be present in the submitted data.  

b) Submit the order through the online shop.

c) Prepare the data according to our specifications. You can UPLOAD the finished data below on the page or sent it to us after completion of the order by e-mail (info at tube-town.de).

d) That's it. The rest is our job.


Note on the Parameter "Plates per Sheet"
The number of plates or logos per sheet. The more plates are on one sheet the longer the runtime is. We can make a maximum of 40 plates per sheet.

Note on "Logo-Option"
If your data contains large areas which need to be engraved (mostly seen on logos or plates for stomp-boxes) then you should check this option then we will engrave the plates twice to make sure that the quality is a as good as possible.
In principle, however, it should be avoided to use large, monochrome areas because one will always see small lines from the laser engraver.
 

 !! IMPORTANT: WHEN CREATING THE PDF FILE, MAKE SURE TO CONVERT THE FONTS TO CURVES. !!
Overview of the requirements click here