Lavoie LA-265A: Difference between revisions

Latest revision as of 06:26, 2 February 2024

Lavoie LA-265A
33 MHz oscilloscope Lavoie LA265A with Lavoie LA-265-CA Plug-in Produced from (?) to (?) Manuals Lavoie LA-265-A Manual (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.

Key Specifications

please add

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, because its terminal strips 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
Lavoie LA-265A with Tektronix Type B
Lavoie LA-265A with Tektronix Type B
Lavoie LA-265A with Tektronix Type B
Lavoie LA-265A with Tektronix Type B
Black front LA-265A
Side view
Rear view

@@ 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]].
+|manufacturer=Lavoie
+|model=LA-265A
+|image=LA265A front.JPG
+|caption=Lavoie LA265A with [[Lavoie LA-265-CA]] Plug-in
+|introduced=(?)
+|discontinued=(?)
+|summary=33 MHz oscilloscope
+|designers=
+|series=500-series scopes
+|manuals=
+* [[Media:Lavoie LA265A Manual.pdf|Lavoie LA-265-A Manual]]
+}}
+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]].
+{{MissingSpecs}}
 ==Internals==
 === Electrical difference to 545 ===
 The high-voltage circuit is not identical to that of the Tektronix [[545|545A]].
-Glow lamps are used to stabilize the high voltage in brightness circuit.
+Neon lamps are used to stabilize the high voltage in brightness circuit.
-However, the glow lamp stabilizer is often faulty.
+However, the neon lamp stabilizer is often faulty - the lamps aged too fast, with the result that the trace flickers.
-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
+Unlike Tektronix instruments of the same era, which require [[silver-bearing solder]], ordinary solder is fine for working on the Lavoie, because its terminal strips have tin-plated steel inserts.
-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==
-* [http://www.radiomuseum.org/forum/lavoie_la_265a_a_superb_tek_clone.html LA-265A, a superb Tek clone] (radiomuseum.org forum)
+* [https://www.radiomuseum.org/forum/lavoie_la_265a_a_superb_tek_clone.html LA-265A, a superb Tek clone] (radiomuseum.org forum)
-* [http://www.radiomuseum.org/r/lavoie_oscilloscope_la_265_ala26.html radiomuseum.org page for LA-265A]
+* [https://www.radiomuseum.org/r/lavoie_oscilloscope_la_265_ala26.html radiomuseum.org page for LA-265A]
 ==Pictures==
 <gallery>
-Image:LA265A_1.jpg|Lavoie LA265A with Lavoie LA-265CA Plug-in
+LA265A_1.jpg | Lavoie LA265A with [[Lavoie LA-265-CA]] Plug-in
-File:Lavoie ca plugin.jpg|Lavoie CA Plug-in
+Lavoie ca plugin.jpg | [[Lavoie LA-265-CA]] Plug-in
-Image:LA265A_2.jpg|Terminals with tin-plated steel insert
+LA265A_2.jpg | Ceramic terminals with tin-plated steel insert
-Image:LA265A_HV.png|Schematic of HV-Supply, glow stabilizer
+LA265A_HV.png | Schematic of HV-Supply, glow stabilizer
+Lavoie la-265a 1.jpg|Lavoie LA-265A with Tektronix [[B|Type B]]
+Lavoie la-265a 2.jpg|Lavoie LA-265A with Tektronix [[B|Type B]]
+Lavoie la-265a 3.jpg|Lavoie LA-265A with Tektronix [[B|Type B]]
+Lavoie la-265a 4.jpg|Lavoie LA-265A with Tektronix [[B|Type B]]
+Black la265a 1.jpg|Black front LA-265A
+La 265a side.jpg|Side view
+La265a rear.jpg|Rear view
 </gallery>
 [[Category:500 series scopes]]
-[[Category:Third-party products]]
+[[Category:Lavoie products]]
+[[Category:Clones of Tektronix instruments]]