From fe36ec9f4d5dd3b05a62e6b03be2d2e7cfdd4b61 Mon Sep 17 00:00:00 2001
From: hap <happppp@users.noreply.github.com>
Date: Sun, 8 Jan 2023 14:17:20 +0100
Subject: [PATCH] sfxphasor: tweak some parameters

---
 src/mame/handheld/hh_pic16.cpp     |  2 +-
 src/mame/handheld/nl_sfxphasor.cpp | 10 +++++-----
 src/mame/nl.flt                    |  3 +++
 3 files changed, 9 insertions(+), 6 deletions(-)

diff --git a/src/mame/handheld/hh_pic16.cpp b/src/mame/handheld/hh_pic16.cpp
index 8405d438236..6dbff62795b 100644
--- a/src/mame/handheld/hh_pic16.cpp
+++ b/src/mame/handheld/hh_pic16.cpp
@@ -555,7 +555,7 @@ INPUT_PORTS_END
 void sfxphasor_state::sfxphasor(machine_config &config)
 {
 	// basic machine hardware
-	PIC1655(config, m_maincpu, 1000000); // approximation - RC osc. R=10K+VR, C=47pF
+	PIC1655(config, m_maincpu, 950000); // approximation - RC osc. R=10K+VR, C=47pF
 	m_maincpu->read_a().set_ioport("IN.4");
 	m_maincpu->write_b().set(FUNC(sfxphasor_state::write_b));
 	m_maincpu->write_c().set(FUNC(sfxphasor_state::write_c));
diff --git a/src/mame/handheld/nl_sfxphasor.cpp b/src/mame/handheld/nl_sfxphasor.cpp
index c6b26e7148f..1717ae20ab9 100644
--- a/src/mame/handheld/nl_sfxphasor.cpp
+++ b/src/mame/handheld/nl_sfxphasor.cpp
@@ -16,7 +16,7 @@ NETLIST_START(sfxphasor)
 	PARAM(Solver.ACCURACY, 1e-7)
 	ANALOG_INPUT(VBATT, 5)
 
-	NET_MODEL("OPENDRAIN FAMILY(TYPE=MOS OVL=0.0 OVH=0.0 ORL=1.0 ORH=1e12)")
+	NET_MODEL("OPENDRAIN FAMILY(TYPE=MOS OVL=0.4 OVH=2.4 ORL=1.0 ORH=1e12)")
 
 	LOGIC_INPUT(P10, 0, "OPENDRAIN")
 	LOGIC_INPUT(P13, 0, "OPENDRAIN")
@@ -26,7 +26,7 @@ NETLIST_START(sfxphasor)
 	NET_C(VBATT, P10.VDD, P13.VDD, P15.VDD, P16.VDD, P17.VDD)
 	NET_C(GND, P10.VSS, P13.VSS, P15.VSS, P16.VSS, P17.VSS)
 
-	RES(R7, 270)
+	RES(R7, RES_K(2.7))
 	RES(R8, RES_K(6.8))
 	RES(R9, RES_K(18))
 	RES(R10, RES_K(5.6))
@@ -45,9 +45,9 @@ NETLIST_START(sfxphasor)
 	DIODE(D3, "1N4002")
 	DIODE(D4, "1N4002")
 
-	QBJT_EB(T2, "BC237B") // BC183
-	QBJT_EB(T3, "BC237B") // BC183
-	QBJT_EB(T4, "BC237B") // BC183
+	QBJT_EB(T2, "2N3904") // BC183
+	QBJT_EB(T3, "2N3904") // BC183
+	QBJT_EB(T4, "2N3904") // BC183
 
 	// pin 10
 	NET_C(P10.Q, R7.1, C2.1)
diff --git a/src/mame/nl.flt b/src/mame/nl.flt
index ee311576f43..8d4f4510ba2 100644
--- a/src/mame/nl.flt
+++ b/src/mame/nl.flt
@@ -26,6 +26,9 @@ universal/cheekyms.cpp
 vtech/gamemachine.cpp
 zaccaria/zaccaria.cpp
 
+// from handheld/hh_pic16.cpp
++sfxphasor
+
 // from midw8080/mw8080bw.cpp
 +280zzzap
 +gunfight