EC1000: Difference between revisions
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{{Vacuum Tube | |||
in measurement probes or microphones (used e.g. in early versions of the Neumann M149). | |Type=Triode | ||
|Number=8254 | |||
|EuroNumber=EC1000 | |||
|RussianNumber= | |||
|Part_nos= | |||
|Description=subminiature triode | |||
|Used_in=P6025;P6032; | |||
|Designers= | |||
}} designed for preamplifiers in measurement probes or microphones (used e.g. in early versions of the Neumann M149). | |||
The | Philips EC1000 = Mullard 8254 | ||
The EC1000 is used as the front-end cathode-follower in the [[P6025]] and [[P6032]]. | |||
{{BeginSpecs}} | {{BeginSpecs}} | ||
{{Spec | Heater | 6.3 V, 185 mA}} | {{Spec | Heater | 6.3 V, 185 mA}} | ||
{{Spec | Anode voltage | 110 V max.}} | {{Spec | Anode voltage | 110 V max.}} | ||
{{Spec | Anode power | 1.5 W max.}} | {{Spec | Anode power | 1.5 W max.}} | ||
{{Spec | Transconductance | 14.5 mA/V }} | {{Spec | Transconductance | 14.5 mA/V @ 15 mA}} | ||
{{Spec | Cathode current | 22 mA max.}} | {{Spec | Cathode current | 22 mA max.}} | ||
{{EndSpecs}} | {{EndSpecs}} | ||
== | {| class="wikitable" | ||
* [ | {{Checkedtubes TableHeader}} | ||
|- | |||
| ? || 157-0100-00 || N/A | |||
|} | |||
==Data== | |||
* [[Media:Philips EC1000 data sheet.pdf|Philips EC1000 data sheet]] | |||
* [[tube:ec1000|ec1000@ radiomuseum.org]] | |||
==Used in== | |||
{{Part usage}} | |||
==Pictures== | |||
<gallery> | |||
Ec1000 tubes.jpg | |||
157-0100-00 1.jpg | |||
157-0100-00 2.jpg | |||
</gallery> | |||
[[Category:Triodes]] | [[Category:Triodes]] | ||
Latest revision as of 06:39, 14 September 2023
The 8254 (European: EC1000) is a subminiature triode vacuum tube designed for preamplifiers in measurement probes or microphones (used e.g. in early versions of the Neumann M149).
Philips EC1000 = Mullard 8254
The EC1000 is used as the front-end cathode-follower in the P6025 and P6032.
Key Specifications
| Heater | 6.3 V, 185 mA |
|---|---|
| Anode voltage | 110 V max. |
| Anode power | 1.5 W max. |
| Transconductance | 14.5 mA/V @ 15 mA |
| Cathode current | 22 mA max. |
| Aged/Checked/Matched Pair Details | ||
|---|---|---|
| Used in | Tek Part# | S/N Range |
| ? | 157-0100-00 | N/A |
Data
Used in
Some instruments using part EC1000
| Instrument | Manufacturer | Class | Model | Description | Introduced |
|---|---|---|---|---|---|
| P6025 | Tektronix | Probe | P6025 | 400 MHz cathode follower probe | (?) |
| P6032 | Tektronix | Probe | P6032 | 850 MHz cathode-follower probe | 1962 |
