Lavoie LA-265A: Difference between revisions

Revision as of 02:36, 2 July 2015

{{{manufacturer}}}
33 MHz oscilloscope Lavoie LA265A with Lavoie LA-265-CA Plug-in Produced from (?) to (?) Manuals Lavoie LA-265-A Manual (PDF) (All manuals in PDF format unless noted otherwise)

Manuals – Specifications – Links – Pictures

The Lavoie LA-265A is a 33 MHz scope that takes letter-series and 1-series plug-ins. It is an unauthorized clone of a Tektronix 545A made for a defense contract by Lavoie Laboratories.

It has two timebases, which allows delayed triggering.

Internals

Electrical difference to 545

The high-voltage circuit is not identical to that of the Tektronix 545A. Neon lamps are used to stabilize the high voltage in brightness circuit. However, the neon lamp stabilizer is often faulty - the lamps aged too fast, with the result that the trace flickers.

Mechanical difference to 545

The mains transformer is potted. Unlike Tektronix instruments of the same era, which require silver-bearing solder, ordinary solder is fine for working on the Lavoie. This is because the terminal strips in the Lavoie have tin-plated steel inserts.

Links

LA-265A, a superb Tek clone (radiomuseum.org forum)
radiomuseum.org page for LA-265A

Pictures

Lavoie LA265A with Lavoie LA-265-CA Plug-in
Lavoie LA-265-CA Plug-in
Ceramic terminals with tin-plated steel insert
Schematic of HV-Supply, glow stabilizer

@@ Line 1: / Line 1: @@
-The '''[[Lavoie Laboratories]] LA-265A''' is a 33 MHz scope that takes
+{{Oscilloscope Sidebar|
-[[letter-series and 1-series plug-ins]].
+title=Lavoie LA-265A |
+image=LA265A_1.jpg |
+caption=Lavoie LA265A with [[Lavoie LA-265-CA]] Plug-in |
+introduced=(?) |
+discontinued=(?) |
+summary=33 MHz oscilloscope |
+manuals=
+* [http://w140.com/LA265A.pdf Lavoie LA-265-A Manual (PDF)]
+}}
+The '''Lavoie LA-265A''' is a 33 MHz scope that takes
+[[letter-series and 1-series plug-ins]].  It is an unauthorized clone of a
+[[545|Tektronix 545A]] made for a defense contract by [[Lavoie Laboratories]].
 It has two timebases, which allows delayed triggering.
-It is a military cloned Tektronix [[545|545A]].
 ==Internals==
@@ Line 9: / Line 19: @@
 The high-voltage circuit is not identical to that of the Tektronix [[545|545A]].
 Neon lamps are used to stabilize the high voltage in brightness circuit.
-However, the neon lamp stabilizer is often faulty.
+However, the neon lamp stabilizer is often faulty - the
-The lamps aged too fast, with the result that the trace flickers.
+lamps aged too fast, with the result that the trace flickers.
 === Mechanical difference to 545 ===
@@ Line 17: / Line 27: @@
 silver-bearing solder, ordinary solder is fine for working on the Lavoie.
 This is because the terminal strips in the Lavoie have tin-plated steel inserts.
-==Manuals==
-* [http://w140.com/LA265A.pdf Lavoie LA-265-A Manual (PDF)]
 ==Links==
@@ Line 27: / Line 34: @@
 ==Pictures==
 <gallery>
-Image:LA265A_1.jpg|Lavoie LA265A with Lavoie LA-265CA Plug-in
+File:LA265A_1.jpg | Lavoie LA265A with [[Lavoie LA-265-CA]] Plug-in
-File:Lavoie ca plugin.jpg|Lavoie CA Plug-in
+File:Lavoie ca plugin.jpg | [[Lavoie LA-265-CA]] Plug-in
-Image:LA265A_2.jpg|Terminals with tin-plated steel insert
+File:LA265A_2.jpg | Ceramic terminals with tin-plated steel insert
-Image:LA265A_HV.png|Schematic of HV-Supply, glow stabilizer
+File:LA265A_HV.png | Schematic of HV-Supply, glow stabilizer
 </gallery>
 [[Category:500 series scopes]]
 [[Category:Lavoie products]]