View source for User:GoldenPhoenix

{{Infobox Calcwiki user|name=GoldenPhoenix|country=United States|timezone=UTC-5|handedness=Ambidextrous}}Specialized in antique calculators.

== Collection ==

=== Slide Rules ===
My most expansive collection.  Slide rules are easy to store, repair, and use regularly.

====== Slide Rule Formatting ======
When describing layouts of slide rules, the following standard is used:

* scales are ordered from the top to bottom of the rule, separated by spaces
* parentheses "()" denote scales on the slide.
* scales placed back-to-back or on the same line are separated by a forward slash "/."
* scales are named as written on the rule, subscripts may be used to differentiate scales for clarity.
* ascending scales are written in black, descending scales are written in red (with the exception of Versalog cosine scales, to match the form on the rules).

{| class="wikitable sortable"
|+Slide Rules
!Model
!Manufacturer
!Layout
!Size
!Scales
!Case
!Acquisition Date
!Notes
|-
|[[A.W. Faber-Castell 67/87 Rb Rietz|67/87 Rb Rietz]]
|A.W. Faber-Castell
|Rietz
|Pocket (5")
|L K A (B <span style="color:red">CI</span> C) D S ST T
|Green zippered leather, includes stylus.
|Feb. 5, 2023
|Includes addiator on the back of the rule.  One of a few slide rules capable of all four elementary functions.
|-
|[[A.W. Faber-Castell V.I. 70-80|V.I. 70-80]]
|A.W. Faber-Castell
|Simplex (specialized)
|Pocket+ (7")
|cm SRU SSU (<span style="color:red">°C °F</span> C) D Centistokes Engler in. [front]
(Dichte API) Ref: °C/°F m³/bbl kg/lb ms⁻¹/ft.s⁻¹ [back]
|Black leather, branded "Esso."
|Jul. 7, 2022
|A highly unusual rule created for the Esso company, exact purpose currently unknown.
|-
|[[ACU-MATH № 400|№ 400]]
|ACU-MATH
|Mannheim
|Standard (10")
|S<sub>a</sub> K A (B <span style="color:red">CI</span> C) D L T
|thin canvas, coated in plastic.  Very poor condition.
|Ca. May 14, 2023
|A rare layout with all scales on the front.  Like all Mannheim rules, the S scale is keyed to the A scale, rather than the C scale. Uses DMS
|-
|[[Diwa № 601-1|№ 601-1]]
|Diwa
|Rietz
|Pocket (5")
|K A (B <span style="color:red">CI</span> C) D L [front]
(S ST T) [back]
|dark brown leather case, stamped Cooper-Bessemer
|Jul. 7, 2022
|Ordered by Cooper-Bessemer.  Has extra marks for calculating circles on the cursor.
|-
|[[Frederick Post Co. Model 1447|Model 1447]]
|Frederick Post Co. (Hemmi)
|Mannheim
|Standard (10")
|A (B <span style="color:red">CI</span> C) D K [front]
(S<sub>a</sub> L T) [back]
|cardboard box
|Jul. 7, 2022
|Has reference guide on the back.  Uses DMS.  Has high visibility red hairline.
|-
|[[Frederick Post Co. Versalog II 1460|Versalog II 1460]]
|Frederick Post Co. (Hemmi)
|Duplex
|Standard (10")
|<span style="color:red">LL/0</span> K A DF (CF <span style="color:red">CIF CI</span> C) D R<sub>1</sub> R<sub>2</sub> LL0 [front]
L <span style="color:red">LL/1 LL/2 LL/3</span> (T/<span style="color:red">T</span> SRT/<span style="color:red">SecT</span> S/<span style="color:green">Cos</span> C) D LL3 LL2 LL1 [back]
|dark brown faux leather, lined with felt.  Broken top flap.
|May 7, 2022
|My first straight engineering rule.  Identical scales to the original Versalog, with the addition of an A scale, but no associated B scale. Has HV red hairline.
|-
|[[Frederick Post Co. Versalog 1461|Versalog 1461]]
|Frederick Post Co. (Hemmi)
|Duplex
|Pocket (5")
|LL0 <span style="color:red">LL/0</span> K DF (CF <span style="color:red">CIF CI</span> C) D R<sub>1</sub> R<sub>2</sub> L [front]

<span style="color:red">LL/1 LL/2 LL/3</span> (T/<span style="color:red">T</span> ST/<span style="color:red">SecT</span> S/<span style="color:green">Cos</span> C) D LL3 LL2 LL1 [back]
|None.
|Aug. 4, 2022
|Pocket version of the original Versalog 1460, note the lack of A scale.  Missing one screw on the cursor.  Has HV red hairline.
|-
|[[Pickett Model N 3|Model N 3]]-T Power Log Exponential
Log Log Dual Base
|Pickett
|Duplex
|Standard (10")
|√<sub>1/2</sub> K A (B ST/S-<span style="color:red">Cos</span> T/T <span style="color:red">CI</span> C) D <span style="color:red">DI</span> ∛<sub>1</sub> ∛<sub>2/3</sub> [front]
LL0± LL1± DF (CF <span style="color:red">CIF</span> Ln/L <span style="color:red">CI</span> C) D LL2± LL3± [back]
|Tan leather, plastic hard liner glued in.
|Ca. Dec. 1, 2022
|Came with unique gaskets between cursor and body (removed).
|-
|[[C10 KL1]]
|Unknown
|Unique
|Circular
|A C [front]
C<sub>i</sub> S T [back]
|None.
|Apr. 28, 2022
|A Ukranian circular rule, the front and back scales process in opposite directions, acting as inverted scales of each other.  The face of the front moves along with a needle, while the back only has the associated needle, the face being static.
|}

=== Mechanical Calculators ===
My original obsession.  Mechanical calculators take more space and effort, so I have comparatively few.
{| class="wikitable"
|+Mechanical Calculators
!Model
!Manufacturer
!Style
!Acquisition Date
!Notes
|-
|[[Facit C-113|C-113]]
|Facit
|Pinwheel (ten-key entry)
|Jan. 19, 2023
|The latest style of the Facit TK.  Missing pointers for decimal places.
|-
|Abacus
|Unknown
|Soroban (Japanese)
|Dec. 25, 2018
|Has a mechanical clearing mechanism, using a scissor arm to push beads back into place.
|}

=== Electronic Calculators ===
Newer collection, I am much less comfortable repairing and interacting with them.
{| class="wikitable"
|+Electronic Calculators
!Model
!Manufacturer
!Style
!Acquisition Date
!Notes
|-
|Model 9104
|Kingspoint
|ten-key Four Function (early)
|Ca. May 14, 2023
|Early four function calculator, Uses a running tally input with two result keys.
|-
|TI-30X IIS
|Texas Instruments
|Scientific
|Unknown
|In use since High School.  Not currently used in favor of other devices
|-
|TI-Nspire CAS Touchpad
|Texas Instruments
|Graphing
|Jul. 12, 2023
|Battery contacts corroded, currently without OS or rechargeable battery pack.
|}