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Rotary Switch 1 Pol / 3 Pos - 3A@250VAC - Impedance / Voltage Selector

Mobile Preview: Rotary Switch 1 Pol / 3 Pos - 3A@250VAC - Impedance / Voltage Selector

Description

High Power Rotary Switch

Can be used as Voltage or Impedance selector
1 pole / 3 position
3 A @ 250 VAC
6 A @ 125 VAC
Solder lugs
Size: 28 mm x 39,5 mm
Frontpanel drill: 10,5 mm
Shaft Diameter 6 mm, D-Shaft

Manufacturer

Herstellerinformationen | Manufacturer Information
NIDEC COMPONENTS EUROPE GmbH
Mergenthalerallee 79-81, 65760 Eschborn
Germany
https://www.nidec-components.com/de/

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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

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Tolex VOX®-Style black basket

Width approx. 135 cm
Price per running meter
Color reproduction depends on the computer monitor and may vary
Supplied as one continuous piece when ordering more than 1 m

Material:

80% PVC film
20% polyester-cotton fabric
REACH compliant

Please note!
When ordering more than 1 m of Tolex and selecting Deutsche Post / DHL Paket or Express as the shipping method, the Tolex will be cut to a width of approx. 115 cm. This is due to the maximum permitted parcel length of 120 cm for these shipping services.
To receive the full roll width, GLS or ExprexxXL must be selected as the shipping method.

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Mallory 150's 0,022 µF / 630 VDC

Mallory Type 150 is a general purpose capacitor for use in blocking, bypass, decoupling, smoothing and some timing applications.

Epoxy end fill meets UL94V-0
Non inductively wound
Flame retardant outer wrap meets UL510
Non polar

Specifications:

Operating Tempeature Range: –55 ºC to +125 ºC (derate linearly to 50% rated voltage at 125 ºC)
Dielectric Withstand Voltage: .6 x rated voltage for 2 s @ +25 ºC ±5 ºC
Dissipation Factor (DF): tgd x 10–4 at +25 ºC ±5 ºC
Insulation Resistance: 10,000 MO x µF, 30,000 MO Min.
Self Inductance: 1 nH max. per 1 mm lead and body length
Life Test: 1000 hrs @ 85 ºC 1.25 x Vn
Damp Heat Test: 95% RH @ +45 ºC for 21 days
Soldering: 260 ºC ±5 ºC for 10 s ±1 s
Long Term Storage Stability: ?C/C = ±3% after 2 years

1,67 €