Dr. Fischer Bulb for Minox Enlarger

MTC Photography · August 23, 1999

<h1> Minox Enlarger Lamp</h1>

<UL>

<LI> Dr. G. Fischer 6V/6A/3A autolicht( automotive light bulb ) Yellow/green box--old package

( for 6V6A and 6V3A bulb)

<LI> Dr. Fischer 6V6A Special Lamp White box--new package

<LI> Base: Single.Contact Bayonet 15mm diameter

<img src="http://d6d2h4gfvy8t8.cloudfront.net/18034991-lg.jpg" align='left'

ALT="Dr. Fischer 6V/6A and 6V3A offset lamp

bulb" HSPACE=5 VSPACE=5 NOSAVE BORDER=5 HEIGHT=260 WIDTH=190>

<LI> Filament coil center length 3mm/7 turn(for 6V6A)

<LI> Filament offset from center: 10mm <li> Filament to contact distance 35 mm.<li> Filament orientation: parallel to bayonet pins<LI> Bulb Height 55mm

<LI> Bulb width 32mm <LI> Life: 100 hours <li> Made in Germany </UL>

Note:

All pictures in this thread is taken with Minox C mounted on Minox

Copy Stand

<a href="http://www.dr-fischer-gmbh.com/"> Dr Fischer Special Lamp GmbH <a>

E-Mail: info@Dr-Fischer-GmbH.de

ken_trettin · August 23, 1999

The bulb currently sold by MPL is a 6V3A in the yellow and green

Autolicht box. All measurements are the same as the 6V6A lamp described

by Martin Tai.

MTC Photography · August 24, 1999

The yellow green 'Autolicht' bulb is old package, as 6v car tail light vanished long time ago.

Dr. Fischer 6V3A bulb and 6V6A bulb with 10mm offset, all works well with Minox enlarger.

Old Fischer 6V6A lamp markings:

<ul><li> Yellow/green Autolicht box, stamp 6V 6 Amp.

<li> Silk screen 6V6A 1521 on bayonet lamp base</ul>

New Fischer 6V6A lamp markings:

<ul> <li>Green 'Dr. Fischer' white box, stamp 6V 6 Amp.<li> Concave stamp on bayonet lamp base: 6V 6A 5A (?)</UL>

MTC Photography · August 24, 1999

<H3>

Dr. Fischer 6V5A Bulb

for

Minox Enlarger I</H3>

<UL>

<LI>

Single contact bayonet, diameter

15mm,

silk screen "6V 5A 1521"</LI>

<LI>

Glass bulb diameter: 19

mm</LI>

<LI>

Height: 55

mm</LI>

<LI>

Filament coil to contact:

35mm,

offset =0.</LI>

<LI>

Filament coil

5mm

11 turns.</LI>

</UL>

<FONT

COLOR="#000000">

<center><IMG SRC="http://d6d2h4gfvy8t8.cloudfront.net/18034991-lg.jpg"

ALT="Dr. Fischer 6V5A

bulb" HSPACE=5 VSPACE=5 NOSAVE BORDER=5 HEIGHT=195 WIDTH=370>

</center>

MTC Photography · September 17, 1999

<h3> Fischer Lamp vs Other Lamps </h3>The following picture shows clearly the differences between Fischer

6V6A bulb and other replacement bulbs, for example, GE 1133 6.2 V 3.9A bulb.

<center><img

src="http://www.accessv.com/~martntai/public_html/manual/BULB2.JPG" border=5></center>

<ul><li> GE 1133 bulb filament is off focus by 10mm

<li> GE 1133 is off axis by 5 mm

<li> GE 1133 filament is perpendicular to bayonet keys, while

Fischer one is parallel.

<ul>

MTC Photography · January 6, 2001

One possible source of Dr. Fischer lamp is

<H3>Professional Lamps Inc</H3>

580 Park Ave

Freehold, NJ 07728

USA

732-863-5555

732-963-5556 fax

specialty bulbs: graphic arts, medical, scientific, photographic,

state and studio, cinema, audio visual and photo-exposure

MTC Photography · January 6, 2001

<h3> Professional Lamp Inc In

China </h3>

CHINA:

Professional Lamps & Optics Co., Ltd.

XingCheng Bldg. Room 1102

JiangNin Road 167

200041 Shanghai, PR China

Tel: +86-21-6271 4033

Fax: +86-21-6255 6587

Professional Lamps & Optics Ltd.

Unit 1905, Billion Trade Centre

31 Hung To Road, Kwun Tong

Kowloon, Hongkong

Tel.: +852-2174 0808

Fax.: +852-2174 0606

MTC Photography · January 6, 2001

<h3> SPECIAL INDUSTRIAL LIGHTING </H3>

MTC Photography · January 6, 2001

A distributor of Dr. Fischer Lamps in Germany

DEUTSCHLAND:

RICHARD SCHAHL GmbH&CoKG

Rotwandstr. 16

D-82049 Pullach

Tel: +49-(0)89-749860-0

Fax: +49-(0)89-749860-10

MTC Photography · January 7, 2001

<h3> Specification and Drawing of Dr Fischer Special Lamp </h3>

<a href="http://www.special.nl/cgi-bin/zoek.cgi"> <font color="green"

size=5>Dr Fischer Lamp Drawings </a>

Click on the part number to obtain drawing

However, many drawings are missing.

MTC Photography · January 7, 2001

<h3>Life of Dr. Fischer Lamp ?</h3>

The life of Dr. Fischer 6v6a lamp for Minox enlarger is

extimated to be about 100 hours, base on similar Fischer projector

lamp of similar wattage:

<a href="http://www.special.nl/cgi-bin/list.cgi?10">Life of projector

lamp </a>

A Fischer lamp if used with care ( ie, turn off the enlarger

lamp when not exposing on photographic paper ) can last a long time

One print takes about 5 to 10 secs.

Conservatively, let us say 20 sec, then an 100 hour Dr.

Fischer bulb may last 100 x 60 x 3 = 18,000 prints !

The estimated 18,000 to 20,000 prints per Fischer lamp

is based on using the lamp at full power.

Minox enlarger has a HI-LOW switch. For enlargements under

4x6" it is best to use low power setting.

Under low light, a Fischer lamp may last twice as long:

40,000 3.5x 5" prints or four hundred boxes of 3.5x5" paper

I still use the same lamp which came with the used Minox

enlarger II; and it is quite possible that this lamp was with the

original owner since day one.

But if you left the enlarger lamp on for days, then it can

burn't out in a couple of days.

Since Dr. Fischer bulb is hard to find, buy one more spare as

backup, you will be safe for a long time.

MTC Photography · January 8, 2001

<a href="http://www.swssec.com/minox.html">SWS

</A> has Dr. Fischer 6v6a lamp in stock

MTC Photography · February 6, 2001

<h3> 6v6A OR 6V3A, which was the original ?</h3>

According to Emanual: Minox Guide, the original lamp came

with Minox enlarger was 6V6A lamp, with 'transverse" filament

pointing downward.

Emanual's Minox Guide is the only Minox book I have seen

which provided a drawing the lamp used in Minox enlarger ( with

transverse filament )

Keisermeir :Small Minox Big Picture also mentioned Minox

enlarger used 6v6A lamp, but no picture or drawing of lamp

MTC Photography · February 10, 2001

Dr. Fischer 6V6A lamp can be special ordered from Fischer Special

Lamp GmbH, minium order 250 pieces at 40 DM each, shipping extra

MTC Photography · February 15, 2001

Dr. Fischer 6v6a LAMP is available from Richard Schahl Spezial Lamp International

export@schahl.de

Tel 49-89-7498600

martin__2 · March 2, 2001

I just picked up #1129 6.4V bulbs at the local pep-boys. They are

made by Sylvania and 2 cost about $3. The filament is not offset,

and it is perpendicular to the bayonet pins but is approximately the

same depth as that of the Fischer bulb. I tested these bulbs and

have determined their output to be about 24 watts or about 4 amps.

These work acceptably in the Model III enlarger I have as a

substitute for the Fischer bulb if none is available and is just as

bright as the 6V 3A bulb from MPL. I am really not sure about the

need for the offset filament...I saw a photo of a bulb in one of my

old instruction manuals, one of the original model II manuals which

called for a 6V 5A bulb which didn't seem to have the offset

filament, so who knows how critical this is? Like I said, the

sylvania bulb is an acceptable substitute in my opinion if no OEM

Fischer bulbs can be found...would anyone else like to test one and

tell me their feelings? If we could find a bulb like the 1129 with

the filament turned 90 degrees I think it would be better.

MTC Photography · March 3, 2001

Martin Doctor

I have a detail analysis of the

<a

href="http://www.greenspun.com/bboard/q-and-a-fetch-msg.tcl?msg_id=000

g1F">Minox Enlarger Illumination System </a> in which I compare

the illumation intensity and eveness of Dr. Fischer 6v6a lamp vs

Sylvania 1129 6.4 V 2.63 A and GE 1133 lamp.

Minox enlarger is a point source light enlarger, the filament

must be as close to a point as possible, and must form an image inside

the enlarger lens-- that is a precondition for even distribution of

illumination; and this requires the filament is possitioned right

on the focal point of the collimator.

My test of Sylvania 1129 and GE 1133 vs Fischer 6v6a indeed

shows that Fischer bulb provdes even illumination, the replacement

lamp does not.

I have a box of Sylvania 1129 (ten in a box ) and a box

of GE 1133.

I have only one Dr. Fischer 6v5a lamp, I did not test it

graham__1 · July 28, 2001

Have Model III, make following observation in attempt to minimise

impact of vanishing globes on Minoxers.

Chasing the Fischer bulb seems an expensive way to achieve what is

essentially a simple matter of placing the collimator lens in a proper

relationship to the bulb.

Put another way, forget the bulb and mount the collimator lens 10mm

closer to the non Fischer lamp using a simple 10mm high tube. Such

tube can be made to lock onto the existing collimator support with

minor or no alteration. A disc placed on top of the tube can provide

an identical collimator lens mounting to the existing plate.

REMEMBER, if you do this, DO NOT TO FIT the Fischer bulb when using

the 'tube' else it will likely hit the collimator lens or the element

will be so close as to possibly cause it to crack from heat.

Bulbs need not cost USD50 ever again, that I note is what some hopeful

is putting as the first bid price on ebay. Done neatly the enlarger

need not stray from its original condition.

It would have been nice if the collimator plate could simply have been

inverted - that would have moved the lens 10mm toward the lamp. But

the internal lamp shield wont allow this - it would have been so neat.

MTC Photography · August 24, 2001

Dr. Fischer 6V 6A Ba15s PLI part number : LN-066/18

MTC Photography · March 1, 2002

6v3a 6v6a Minox enlarger bulbs on ebay

http://cgi.ebay.com/aw-cgi/eBayISAPI.dll?ViewItem&item=1335276363

MTC Photography · December 29, 2003

http://www.8x11film.com sells Dr. Fischer bulb for Minox enlarger

MTC Photography · December 30, 2003

US source of Dr Fischer bulb for Minox enlarger:

http://jandcphotography.com/Minox.htm

MTC Photography · January 25, 2004

In Nov 2002, a Minoxer contacted Debi Meyer at Professional Lamps, Inc. at 800-548-3626 or 732-863-5555, and was quoted a price of $19.50 for The 6V6A bulb for the Minox enlarger (internal part

number LW-066/18)

MTC Photography · July 21, 2015

<img src="http://d6d2h4gfvy8t8.cloudfront.net/18057483-md.jpg" alt="" width="398" height="680" />Three different packaging of Dr Fischer bulb

MTC Photography · February 14, 2019

Replacement for Dr Fischer bulb

Dr Fischer 6v bulb | eBay

Sign In

Dr. Fischer Bulb for Minox Enlarger

Recommended Posts

Link to comment

Share on other sites

Link to comment

Share on other sites

Link to comment

Share on other sites

Link to comment

Share on other sites

Link to comment

Share on other sites

Link to comment

Share on other sites

Link to comment

Share on other sites

Link to comment

Share on other sites

Link to comment

Share on other sites

Link to comment

Share on other sites

Link to comment

Share on other sites

Link to comment

Share on other sites

Link to comment

Share on other sites

Link to comment

Share on other sites

Link to comment

Share on other sites

Link to comment

Share on other sites

Link to comment

Share on other sites

Link to comment

Share on other sites

Link to comment

Share on other sites

Link to comment

Share on other sites

Link to comment

Share on other sites

Link to comment

Share on other sites

Link to comment

Share on other sites

Link to comment

Share on other sites

Link to comment

Share on other sites

Create an account or sign in to comment

Create an account

Sign in