EC1000: Difference between revisions

Latest revision as of 05:39, 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

Pictures

@@ Line 1: / Line 1: @@
-The EC1000 is a subminiature triode.
+{{Vacuum Tube
-The [[P6032]] uses an EC1000 as the front-end cathode-follower.
+|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).
-* [http://w140.com/EC1000.pdf Philips EC1000 Datasheet (PDF)]
+Philips EC1000 = Mullard 8254
+The EC1000 is used as the front-end cathode-follower in the [[P6025]] and [[P6032]].
+{{BeginSpecs}}
+{{Spec | Heater | 6.3 V, 185 mA}}
+{{Spec | Anode voltage | 110 V max.}}
+{{Spec | Anode power | 1.5 W max.}}
+{{Spec | Transconductance | 14.5 mA/V @ 15 mA}}
+{{Spec | Cathode current | 22 mA max.}}
+{{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
+-0100-00 1.jpg
+-0100-00 2.jpg
+</gallery>
+[[Category:Triodes]]